CURRICULUM VITAE NAME: Ponnada A. Narayana, Ph.D. PRESENT TITLE: Professor of Diagnostic and Interventional Imaging and Director of

Magnetic Resonance Research; Vice-Chair for Research Endowed Chair in Biomedical Imaging BUSINESS Department of Diagnostic and Interventional Imaging ADDRESS: The University of Texas-Houston Health Science Center, Medical

School, Room MSE R172 6431 Fannin Street Houston, Texas 77030

UNDERGRADUATE Andhra University EDUCATION: Andhra, India

1959-1963 B.Sc. Physics First in Merit

GRADUATE Indian Institute of Technology EDUCATION: Kanpur, India

1969 Ph.D., Physics

Andhra University Andhra, India 1965 M.Sc., Nuclear Physics

ACADEMIC Professor of Diagnostic and Interventional Imaging, APPOINTMENTS: Director of MR Research and Vice Chair for Research Chair in Biomedical Engineering Medical School

University of Texas-Houston Health Science Center 1993-Present

Associate Professor of Radiology and Director of MR Research University of Texas-Houston Health Science Center 1988-1993

Assistant Professor of Radiology University of Texas-Houston Health Science Center 1983-1988

Member of Graduate Faculty (Graduate School of Biomedical Sciences) University of Texas-Houston Health Science Center 1985-present

Research Associate University of Texas Health Science Center at Houston 1982-1983

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Research Scientist University of Houston

Houston, Texas 1981-1982

Associate Professor of Physics University of Hyderabad Hyderabad, India 1977-1982

Research Associate Wayne State University Detroit, Michigan

1974-1977 OTHER PROFESSIONAL APPOINTMENTS: Adjunct Professor Department of Electrical and Computer Engineering University of Houston 2000 – Present Adjunct Professor Department of Biomedical Engineering University of Houston 2002 - Present Adjunct Professor,

Center for Biomedical Engineering, Houston The University of Texas

2001- Present

Adjunct Professor Department of Biochemistry and Molecular Biology University of Texas Medical Branch, Galveston

2005 - Present

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LICENSURE: Medical Physicist License (Texas) MP 0302 - 2002

CERTIFICATIONS: American Board of Radiology, Diagnostic Radiologic Physics,

June 1, 1998 PROFESSIONAL American Association of Physicists in Medicine ORGANIZATIONS: 1984 - present

American Association for the Advancement of Science 1984 - present

International Society of Magnetic Resonance in Medicine (Previously known as Society of Magnetic Resonance Imaging) 1984 - present The New York Academy of Sciences 1988 - present

Society for Computer Applications in Radiology 1990 - present

Society of Neuroscience

2005- present

HONORS: Dean’s Excellence Award 1999-2000 Dean’s Excellence Award 1998-1999 Deans' Teaching Excellence List 1987-88

Deans' Teaching Excellence List 1988-89 Outstanding Achievements in Teaching List 1993 Presidential Scholar (UT-Houston) 2006 Elected Fellow, International Society of Magnetic Resonance in Medicine (2011) Distinguished Academy of Radiology Researcher (2013)

EDITORIAL Member, Editorial Board, Journal of Magnetic POSITIONS: Resonance Imaging 1990 - present Reviewer, Annals of Neurology 1998 - present

Reviewer, Magnetic Resonance in Medicine 1989 - present

Reviewer, Journal of Magnetic Resonance

1987 - present

Reviewer, Magnetic Resonance Imaging 1989 - present

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Reviewer, Radiology 1997 - present Reviewer, NeuroImage 2002 - present Reviewer, Journal of Neuroscience Research 2000 - present

Reviewer, Abstracts for Society of Magnetic Resonance Imaging

Meeting for the Society of Magnetic Resonance Imaging 1989 - 2002

Reviewer for several books

SERVICE ON NATIONAL GRANT REVIEW PANELS, STUDY SECTIONS, COMMITTEES: Member: Developmental Brain Disorder (DBD) 2003-2005

Member: Brain Disorders and Clinical Neuroscience 5 (NIH) - 1999

Reviewer for NIH: Neurological Sciences 3 Study Section - 1995 - 1998

NICHD Special Review - 1995

National Institute of Drug Abuse: Special Review - 1993, 1994

Ad Hoc Reviewer for NIH: Neurology B 1 Study Section - 1993

NIH (General Clinical Research Program) Site Visit to University of Pennsylvania, Philadelphia, PA - March 19-20, 1992

Ad Hoc Reviewer for NIH for several study sections

SERVICE ON THE UNIVERSITY OF TEXAS - HOUSTON HEALTH SCIENCE CENTER COMMITTEES:

Animal Welfare Committee 1995- 1999 Scientific Review Committee 1996-present Faculty Development Leave Committee 1995 - 1998

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Biomedical Research Support Grant Advisory Committee 1995 - 1998

Biomedical Research Support Committee 1991-1994 (Vice Chairman)

Scientific Council Member 1989-1990 Operating Committee, Center for Advanced Biomedical Imaging 2007- present (Co-Chair)

Executive Committee, Center for Clinical and Translational Sciences

2007- present

Scientific Committee, Mischer Institute of Neurological Sciences (Memorial Hermann Hospital) 2008- present Center for Advanced Biomedical Imaging Research (CABIR), Chair 2009 - present

SERVICE ON THE UNIVERSITY OF TEXAS - HOUSTON MEDICAL SCHOOL COMMITTEES:

Director of Magnetic Resonance Research Department of Radiology 1987- present

Admissions Committee Interviewer 1996 – 2002 Executive Committee of the Neuroscience Research Center 2000 – present Department of Radiology Research Committee 1984 - 1991

Department of Radiology Library Committee 1985 - 1989

SERVICE ON GRADUATE SCHOOL COMMITTEES:

Graduate School of Biomedical Sciences Membership Committee - Chairman 1995 - 1996

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Graduate School of Biomedical Sciences Medical Physics Program Steering Committee 1995 - 1997

Graduate School of Biomedical Sciences Member on the Committee for Specialized M.S. in Medical Physics 1985 - 1988

Graduate School of Biomedical Sciences Member of the Academic Standards Committee 1987 - 1990

Graduate School of Biomedical Sciences Chairman of Academic Standards Committee 1989 - 1990

Graduate School of Biomedical Sciences Dean's Ad Hoc Program Planning Group 1989 - 1990 Graduate School of Biomedical Sciences M.S. in Medical Physics Committee 1993 - 1996 Graduate School of Biomedical Sciences Medical Physics Steering Committee 2004 - present

SPONSORSHIP OF GRADUATE STUDENTS: Thesis Supervisor:

John D. Hazle, Ph.D. Student (Awarded Ph.D. in 1989) Current Position - Professor and Chairman of Imaging Department, MD Anderson Cancer

Center, Houston, Texas

Edward F. Jackson, Ph.D. Student (Awarded Ph.D. in 1990) Current Position - Professor of Radiology, MD Anderson Cancer Center, Houston, Texas

Lovely K. Fotedar, M.S. Student (Awarded M.S. in 1989) Current Position - QA Engineer, Boeing (NASA), Houston, Texas

James C. Falconer, Ph.D. Student (Awarded Ph.D. in 1995) Current Position – Optometrist, Anchorage, Alaska

Barry J. Bedell,

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Ph.D. Student (Awarded Ph.D. in 1996) Current Position - Assistant Professor and Director of Small Animal Imaging MNI Montreal, Canada

David A. Fenyes, M.D./Ph.D. Student (Awarded Ph.D. in 1999) Asst Professor (part time) and Private Practice, UT Southwest, Dallas, Texas

Nicholas Zacharopoulos, M.S./Ph.D. Student (Awarded M.S. in 1999) Current Position - Medical Physicist, New York Bhavik Kanabar, 2002-2005 MS Student, Department of Biomedical Engineering University of Houston Current Position-Software Engineer, GE Med Systems, Milwaukee, Wisconsin Jaivijay Ramu, 2002 – March 2006 MS Student, Department of Electrical and Computer Engineering University of Houston Current Position – Senior Research Specialist, UNM Health Sciences Ctr, Albuquerque, NM Aparna Deo, 2004- May 2006 MS Student, Department of Biomedical Engineering University of Houston Current Position – Left for India Himanshu Bhat, Sept 2004 – August 2006 MS Student, Department of Electrical and Computer Engineering University of Houston Current Position – Graduate Student at Northwestern University, Chicago Venkata Kishore Mogatadakala, (Awarded Ph.D. in 2008) Current Position – MRI Systems Engineer - GE Healthcare, South Carolina Laura Sundberg, PhD (Awarded Ph.D. in 2009) Current Position – University of Houston Rui Liu, (Awarded Ph.D. in 2009) Current Position – Lansdale, PA Chirag Patel (Awarded Ph.D. in 2010) Residency - UCLA Viabhav Juneja, December 2006 (Awarded Ph.D. in May 2012) Current Position - Unknown Cheukkai Hui, June 2008 (Awarded Ph.D. in May 2012) Current Position - MD Anderson

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Rene Colorado, July 2008 – June 2011 (Awarded M.D./Ph.D. in 2011) Residency – Harvard University

Mentor Post-Doctoral Fellows

Edward E. Fitchard, Ph.D. February 1993 – 1994 Current Position - Medical Physicist University of Wisconsin

James C. Falconer, Ph.D. February 1995 - May 1996 Current Position-Optometrist

Barry J. Bedell, Ph.D. February 1997 - June 1997 Current Position - Asst Professor and Director of Small Animal Imaging MNI, Montreal

Timothy J. Doyle, Ph.D., DO February 1992 – 1997 Current Position-Resident Fuqiang Zhao, Ph.D. March 1998 - June 1998 Current Position-Post Doctoral Fellow University of Minnesota Rakesh Sharma, Ph.D. September 1997 – 1999 Current Position- Postdoctoral Fellow, Research Faculty Florida State University

Hongyue Yu, Ph.D. July 1997 – 2000 Current Position-Post Doctoral Fellow MGH, Boston

Renjie He, Ph.D. November 1998 – 2011 Current Position – Unknown Ibrahim ElShafie, Ph. D. June 2000 – 2001 Current Position-Professor Cairo University Muhammed Farooque, M.D., Ph.D.

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May 2001 - September 2002

Balasrinivasa Rao Sajja, Ph.D. Sept 2002 – 2006 Current Position – Assistant Professor University of Nebraska

Sushmita Datta, Ph.D. Sept 2003 – 2008 Current Position – Assistant Professor, UT-Houston Xiang Deng, Ph.D. 2005 - 2006 Current position - Left for China Guozhi Tao, Ph.D. 2005 – 2008 Current Position – UTHSC Junchao Qian, Ph.D. 2008 – 2010 Current Position – Left for China Getaneh Bayu Tefera, Ph.D. 2008 – present Current Position – UTHSC Sundberg, Laura, Ph.D. 2010 – 2011 Current Position – Professor, University of Houston

Research Scientists: Saaussan Madi, Ph.D.

Sept 2002 – June 2004 Current Position - Application Scientist, Bruker Biomedical Systems, Billerica, MA David Cohen, Ph.D.

July 2004 – 2005 University of Texas Health Science Center Houston

Kurt Bockhorst, Ph.D. 2005 – present

University of Texas Health Science Center Houston

Juan Herrera, Ph.D. 2006 – 2014 – Promoted to Faculty University of Texas Health Science Center Houston Emilio Esparza-Coss, Ph.D.

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2008 – August 2013 Current Position - Unknown Xintian Yu, Ph.D. 2012 – 2013 Current Position - Unknown Leorah Freeman, Ph.D. 2013 – present Visiting Scientist - Universite Pierra et Marie Curie (Paris, France)

Junior Faculty:

Mehmet Bilgen, Ph.D.

Khader M. Hasan, Ph.D. Ping Hou, Ph.D. Renjie He, Ph.D. Sushmita Datta, Ph.D. Nehal Parikh DO Flavia Nelson, MD Giridhar Kalamangalam, MD Nitin Tandon, MD John Lincoln, MD Refaat Gabr, PhD Derek West, MD Juan Herrera, PhD

SPONSORSHIP OF UNDERGRADUATE STUDENTS:

Ajay Dhankhar from Angelo State University, San Angelo, TX, Summer, 1991

Mohammed Javeed Zaki from Angelo State University, San Angelo, TX, Summer, 1992 - 1993

Rohit Jainendra from Angelo State University, San Angelo, TX, Summer, 1992 Spring and Summer of 1993

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Saurah Dutta Chowdhury from The University of the South, Sewanee, TN, December 1992/January 1993

Rahul Pathak from Angelo State University, San Angelo, TX, Summer, 1993 - 1994

Arijitt Borthakur from Angelo State University, San Angelo, TX, Summer, 1993 - 1994

Devesh Raj from Angelo State University, San Angelo, TX, Summer, 1994 - 1995

Sarvang Dalal from Houston Baptist University, Houston, TX, Summer, 1994

Avijit Borthakur from Angelo State University, San Angelo, TX, Summer, 1995

Vikash Marda from Angelo State University, San Angelo, TX, Summer, 1996

Omer Zaki from Angelo State University, San Angelo, TX, Summer, 1996

Saumya Sivaram from Rice University, Houston, TX, Summer, 1997

Chaitanya Upadhyay from Angelo State University, San Angelo, TX, Summer, 1997

James Henderson from Rice University, Houston, TX, Summer, 1998 Daniel Shreter, University of Texas, Austin, Summer, 2002 Michael Stephen, University of Texas-Houston Medical School, Summer, 2002 Victor Hu, Summer, 2002 Brian Pham, Summer, 2004 Omar Husain, Summer, 2006 T. Davis Staewen, Summer 2010 Anhtuan Nguyen, Summer 2011 Murtaza Mandiwala Summer 2011 Komei Shimizono, Summer 2013

TEACHING RESPONSIBILITIES:

1) Magnetic Resonance Imaging and Spectroscopy. Lectures to GSBS Students. 15 lecture hours to students. 1987-1991

2) Diagnostic Radiology Lectures in Magnetic

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Resonance spectroscopy to 4th year Medical Physics Students

3) Introduction to Medical Physics I: Basic Interaction Fall 1987-1989 6 lecture hours to Medical Physics Students

4) Medical Physics Imaging II Course: GSBS Interaction Spring 1994 18 contact hours to Graduate Students

5) Medical Physics II - Diagnostic Physics Interaction Spring 1996

6) Medical Physics II - Diagnostic Physics Interaction Spring 1997

7) Medical Physics II - Diagnostic Physics Interaction Spring 1998 8) Medical Physics II – Diagnostic Physics Interaction Spring 1999 9) Medical Physics II – Diagnostic Physics Interaction Spring 2000 10) Medical Physics II – Diagnostic Physics Interaction Spring 2001 11) Neurobiology of Diseases: Application of Advanced MR Techniques Fall 2005

ADMINISTRATIVE RESPONSIBILITIES: Directing the 7T animal MR and 3T research dedicated whole body MR Centers. SUPERVISORY RESPONSIBILITIES:

a) Supervising research staff of 20 individuals (faculty, post-docs, scientists, graduate students, technicians)

b) Supervising the 3T MRI staff

CLINICAL RESPONSIBILITIES:

1) Development of special RF coils for Clinical Magnetic Resonance Imager Giving lectures on special topics on Magnetic Resonance to Faculty and Residents. (January 1986-Present)

2) Development of in vivo spectroscopy and quantitative image analysis on MR scanner

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3) Development of novel MR sequences

4) MRI Scanner quality assurance

5) Assist radiologists and clinicians with their MRI needs (protocol optimization,

sequence development, data analysis etc.) CURRENT GRANT SUPPORT ACTIVE

1 R01 NS078244-01A1 (Narayana) 9/1/2012 – 5/31/2017 2.4 Calendar NIH/NINDS Annual DC $ 218,750 Lesion Activity and Atrophy in Multiple Sclerosis: Analysis of Multi-center MRI Major Goals: The analysis of longitudinal MRI data on a multi-center cohort Imaging Service Agreement (Narayana) 6/15/15 – 6/14/17 SanBio, Inc. Annual DC $272,028 1.8 Calendar Major Goals: Provide data image analysis on the traumatic brain injured patients as a part of phase 2 clinical trials. HMR1726/EFC6260 (Wolinsky) 10/1/07 – 3/1/16 1.2 calendar Study Efc6260: Teriflunomide Annual DC $583,594 Teriflunomide in clinically isolated syndrome (early MS). A randomized, double-blind, placebo-controlled, parallel-group design study. Major Goals: To evaluate the efficacy & safety of teriflunomide in subjects with a first clinical episode suggestive of MS. UL1 TR000371 (McPherson) 7/01/06 – 5/31/17 0.6 Calendar NIH/NCATS DC $2,759,336 Center for Clinical and Translational Sciences Major Goals: To develop translational research infrastructure 5R01MH085667-02 (Soares) 9/01/12 – 6/30/17 0.6 calendar NIMH/NIH Annual DC $557,539 Searching for Endophenotypes of Bipolar Disorder Major Goals: To search for Endophenotypes of Bipolar Disorder in patients

PAST GRANT SUPPORT:

P50 DA009262 (Narayana Project 5; Overall PI: Schmitz) NIDA/NIH Substance Abuse Research – Medication Development Center Major Goals: Development and evaluation of treatment in substance abuse 8/1/10 – 5/31/16 Total support $219,921 PP2247 (Narayana) National Multiple Sclerosis Society

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Effect of repeated Gd administration: Controlled studies in rodents Major Goals: Evaluate the role of repeated Gd injections on dentate nuclei in the EAE model 6/1/14 - 5/31/15 Total support $40,000 GZ-2012-10890 (Narayana) Genzyme Corporation Effects of Teriflunomide on Regional Cortical and Deep Gray Matter Atrophy: Analysis of the EFC6049 MRI Data Major Goals: Analysis of the longitudinal MRI data acquired in multi-center clinical trials in multiple sclerosis cohort. 5/3/15 – 6/30/15 Total support: $456,300 Sheikh, K (Principle Investigator) NINDS/NIH Grant # 1R01NS070888-01A1 Major Goals: Non-invasive imaging to quantify peripheral nerve injury and repair Total support $313,489 Narayana, PA (Principle Investigator) Department of Defense Mission Connect Mild TBI Translational Research Consortium Major Goals: MRI of Traumatic Brian Injury in humans and animals 8/01/08- 7/31/13 Total support $ 1,360,685 Moeller, FG (Principle Investigator) NIDA/NIH Substance Abuse Research – Medication Development Center P50 DA009262-16A1 8/1/10 – 5/31/13 Total support $2,079,960 Narayana, Ponnada (Principle Investigator) NIH/NIBIB Automated MR Image Analysis in MS: Identification of a Surrogate Grant # 2 R01 EB02095 (Narayana) 9/15/02 – 2/29/13 Total support $2,658,860.390 Lublin, Fred (Principle Investigator) NIH/NINDS Combination Therapy in Multiple Sclerosis Grant # U01 NS045719-01A1 2/1/2003 – 11/30/2012 Total Support (DC only) $10,073,501 McPherson, David (Principle Investigator) NIH/NCRR Center for Clinical and Translational Sciences Grant #: 1UL1RR024148-01 10/1/06 – 6/30/11 Total DC $5,399,293 (Direct costs only)

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Lane, Scott (Principle Investigator) NIH/NIAAA Neural Correlates of Alcohol Effects on Aggressive Behavior Grant# R01 AA016965 5/01/08 – 04/30/12 Total DC $180,000 (Direct costs only) Narayana, PA (Principal Investigator) NIH/NIBIB (ARRA) Gran t# 1R03EB008084-01 06/01/2009 – 05/30/2011 Total Support: $100,000 (Direct costs only)

Narayana, PA (Principal Investigator) NIH/NIBIB (ARRA) Grant #3R01EB002095-07S109 06/01/09 – 08/31/11 Total Support: $35,160 (Direct Costs only) Narayana, PA (Principal Investigator) MRI of Angiogenesis in Spinal Cord Injury NIH/NINDS Grant # R01 NS045624 8/3/ 2005 – 6/30/2011

Total Support: $2,441,659 (Direct Costs only) Narayana, PA. (Principal Investigator) 3 T Whole-Body Magnetic Resonance Scanner National Institutes of Health Grant # 1 S10 RR19186-01 April 15, 2004 – April 14, 2005 Total Support: $500,000 (Direct Costs only)

Narayana, PA. (Principal Investigator) High Field MR Scanner for Animal Studies National Institutes of Health (NIH) Grant # 1 S10 RR17205-01 June 1, 2003 – May 31, 2004 Total Support $1,575,000 (Direct Costs only) Narayana, PA. (PI: J. Steinberg, M.D.) Neural Correlates of Cognition Schizophrenia National Institutes of Health (NIH) May1, 2002 – April 30, 2005 Total Support: $750,000 (Direct Costs Only)

Narayana, PA. (Principal Investigator) Serial MRSI: Sub-study of Primary Progressive Multiple Sclerosis Teva Marion Partners March 1, 1999 – February 28, 2004

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Total Support: $ 488,773 (Direct Costs only) Year 1 Support: $ 134,940 (Direct Costs only)

Narayana, PA. (PI: Jerry Wolinsky, M.D.) A multinational, multicenter, double-blind, placebo controlled study to evaluate the efficacy,

tolerability and safety of glatiramer acetate in primary progressive sclerosis patients. Protocol # 01-9008 Teva Marion Partners October 2, 1998 - September 30, 2002 Total Support: $871,545 (Direct Costs Only) Narayana, PA. (PI: Jerry S. Wolinsky, M.D.) Protocol 01-9004, Open label study to evaluate the safety of Copaxone® and to monitor the

neurologic course of disease in multiple sclerosis patients treated with Copaxone. MRI Analysis Center - Teva Marion Partners April 1, 1998 – February 5, 2003 Total Support: $281,408 (Direct Costs Only) Narayana, PA. (PI: Jerry S. Wolinsky, M.D.) Antibiotic Treatment Trial Directed Against C. Pneumoniae in MS National Multiple Sclerosis Society/National Institutes of Health Grant #: R01 NS40477 August 1, 2000 – July 31, 2003 Total Support: $98,287 (Direct Costs Only) Year 1 Support: $40,063 (Direct Costs Only) Narayana, PA. (PI: Jerry S. Wolinsky, M.D.) CombiRx study of relapsing multiple sclerosis: MRI Analysis Center Biogen/Teva Marion Partners (TMP) October 1, 1998 – March 31, 2003 (Biogen) April 1, 2000 – March 31, 2000 (TMP) Support: $61,157 (Biogen) Support: $30,169 (TMP) Narayana, PA. (Principal Investigator) Magnetic Resonance of Spinal Cord Injury National Institutes of Health (NIH) July 1, 1996 – June 30, 2001 Grant #: 2 R01 NS 30821 Total Support: $ 1,128,389 (Direct Costs only) (35%) Year 1 Support: $ 222,700 (Direct Costs only) Narayana, PA. (Principal Investigator) High Field MR Scanner for In Vivo Animal Studies National Institutes of Health April 1, 2000 – March 31, 2001 Grant # S10 RR14804 Total Support: $ 500,000 (0%)

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Narayana, PA., (PI: Staley A. Brod, M.D.) Ingested IFN-α in RRMS: A Phase 11b MRI Trial National Multiple Sclerosis Society April 1, 2001 – March 30, 2002 Total Support: $149,925 (Direct Costs Only) (10%) Narayana, PA. (PI: Jerry S. Wolinsky, M.D.) Miscellar Paclitaxel for the treatment of secondary progressive multiple sclerosis Protocol # 002-MPMS98-1 Angiotech Pharmaceuticals July 21, 2000 – June 30, 2000 Total Support: $105,641 (Direct Costs Only) (5%), Year 1 Support: $40,063 (Direct Costs)

Narayana, PA., (Principal Investigator) Serial Magnetic Resonance in Multiple Sclerosis. National Institutes of Health (NIH) Grant #: 3 R01 NS31499-07S1 April 1, 1999 - March 31, 2000 Total Support: $50,000 Narayana, PA. (Principal Investigator) Magnetic Resonance of Spinal Cord Injury National Institutes of Health (NIH) July 1, 1999 - June 30, 2000. Grant # 3 R01 NS 30821-07S1 Total Support: $50,000

Narayana, PA. (PI: Jerry Wolinsky, M.D.) Micellar Paclitaxel for the Treatment of Secondary Progressive Multiple Sclerosis MRI Analysis Center August 1, 1998 - July 31, 2000 Total Support: $105,641 (Direct Costs Only) (5%) Narayana, PA. (PI: Jerry Wolinsky, M.D.) Copaxone Open Label Amendment # 1 MRI Analysis Center – Protocol # 01-9004 April 1, 1998 – February 5, 2000 Total Support: $166,012 (Direct Costs Only) (10%) Narayana, PA. (Co-PI; Staley Brod, M.D., PI) Oral-IFN Biological Effects in Relapsing Multiple Sclerosis National Institutes of Health (NIH) Grant # 1 R01 NS3569-01 April 1, 1997 - March 31, 1999 Total Support: $584,884 (Direct Costs Only) (10%), Year 1 Support: $286,757 (Direct Costs)

Narayana, PA. (PI: Jerry Wolinsky, M.D.) Phase 2 Study of Hu23F2G Multidose in Acute Exacerbations of Multiple Sclerosis Protocol # AMS05

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April 1, 1998 - March 31, 1999 Total Support: $125,276 (Direct Costs Only) (10%)

Narayana, PA. (PI: Jerry Wolinsky, M.D.) Copaxone�Open Label Amendment #1, MRI-Analysis Center Protocol # 01-9004 April 1, 1998 - March 31, 1999 Total Support: $166,011 (Direct Costs Only) (10%) Narayana, PA. (Jerry Wolinsky, M.D.) MRI Analysis Center for: A Randomized, Double-blind, Placebo-controlled, Phase 3 Study of Roquinimex (Linomide) in Relapsing-Remitting and Secondary Progressive Multiple Sclerosis Pharmacia, Inc. August 1, 1995 - July 31, 1999 Total Support: $ 1,824,070 (Total Direct Costs) (15%)

Narayana, PA. (Co-PI; Ian Butler, M.D., PI) Cerebral Palsy: A Classification Based on Magnetic Resonance Techniques and Neuropsychology Shriners Hospital for Crippled Children January 1, 1996 - December 31, 1997 Total Requested Support: $350,022 Year 1 Support: $112,341 Narayana, PA. (Principal Investigator) Magnetic Resonance of Spinal Cord Injury National Institute of Health (NIH) July 1, 1992 - June 30, 1996 Grant #: 1 RO1 NS 30821-01. Total Support: $736,112 (Direct Costs Only). Year 1 support: $173,347 (Direct Costs Only) Narayana, PA., (Co-PI; P.I.: Ian J. Butler, M.D.) In vivo Magnetic Resonance Spectroscopic Studies in Diseased and Developing Muscle Shriners Hospital for Crippled Children January 1, 1994 - December 31, 1995 $78,973 (Direct Costs Only) Year 1 Support: $41,807 (Direct Costs Only)

Narayana, PA. (Principal Investigator) Development Of Advanced Magnetic Resonance Technology For The In vivo Evaluation of Neurologic Disease Texas Higher Education Coordinating Board - Advanced Research Program November 2, 1991 - October 31, 1994 $128,211 Narayana, PA., (Co-Principal Investigator, P.I.: Ian J. Butler) Cerebral Palsy: a Classification Based on

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Magnetic Resonance Techniques and Neuropsychology Shriners Hospital for Crippled Children January 1, 1993 - December 31, 1994 $90,000

Narayana, PA., (Principal Investigator) Proton Magnetic Resonance Spectroscopy and Imaging of Multiple Sclerosis National Multiple Sclerosis Society October 1, 1992 - March 1, 1993 Grant # RB 2236-B-2 $291,576 (Direct Costs Only) Year 1 Support: $104,592 (Direct Costs Only) This grant was replaced by NIH Grant # RG 2236-B-2

Narayana, PA., (Co-Principal Investigator, P.I.: John H. Harris, Jr., M.D., D.Sc.) Magnetic Resonance Imaging of Acute Spinal Cord Trauma National Institutes of Health (NIH) Grant #: 1RO1 NS25699-01A1 1989-1992 $524,539

Narayana, PA., (Co-Principal Investigator, P.I.: Ian J. Butler, M.D.) In Vivo Proton Magnetic Resonance Spectroscopic Studies in Diseased and Developing Muscles Shriners Hospital for Crippled Children January 1, 1990 - December 31, 1992 $227,752

Narayana, PA., (Principal Investigator) Proton Magnetic Resonance Spectroscopy and Imaging of Multiple Sclerosis National Multiple Sclerosis Society October 1, 1990 - September 30, 1992 Grant # RG 2236-A-1 $153,680

Narayana, PA., (Principal Investigator) In vivo Proton Magnetic Resonance spectroscopy of Muscles Muscular Dystrophy Association July 1, 1990 - December 31, 1991 $63,897

Narayana, PA., (Principal Investigator) Effect of 10 + days of space flight on neuro-muscular skeletal functions after emergency egress performance II. MRI-MRS changes National Aeronautics Space Administration (NASA) May 1, 1990 - September 1991 $40,919 (Direct Costs)

Narayana, PA., (Principal Investigator)

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In Vivo Proton MRS of Normal And Abnormal Muscles Muscular Dystrophy Association (MDA) 1988 - 1990 $82,000

Narayana, PA., (Principal Investigator) Design And Development Of An Actively Shielded Gradient Coil System For In Vivo Localized Magnetic Resonance Spectroscopy Studies. BRSG Grant, University of Texas, Medical School Grant #: 2 S07 RR 05745-16 1988 - 1989 $4,750

Narayana, PA., (Principal Investigator) MR Techniques For Localized Proton Spectroscopy National Institute of Health (NIH) Grant # 1 RO1 GM38272-01 $56,103 1987 - 1988

Narayana, PA., (Principal Investigator) Localized T1 Measurements in NMR National Institutes Of Health (NIH) Grant # 1RO1 CA42880-01 1986 - 1987 $87,879

Narayana, PA., (Principal Investigator) NMR Studies Of Muscular Dystrophy BRSG Grant, University of Texas, Medical School Grant # 2-S07 RR-05745-12 1984 - 1986

Narayana, PA., (Principal Investigator) Development And Application Of High Resolution And High Sensitivity Methods In Light Scattering, Magnetic Resonance And Combined Techniques University Grants Commission, New Delhi, India 1978 - 1981

BIBLIOGRAPHY PUBLICATIONS A. ABSTRACTS: 1. Delayre, J.L., Jensen, D.J., Brey, W.W., Tong, V., and Narayana, PA. A small 2 T MR imaging

spectrometer design and implementation. Society Magnetic Resonance in Medicine Conference. New York, 1984

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2. Narayana, PA., Misra, L.K., Delayre, J.L., Hazlewood, C.F., and Munjal, R.P. Muscular Dystrophy: NMR studies of sarcoplasmic reticulum. XI International Conference on Magnetic Resonance in Biological Systems, India, 1984

3. Misra, L.K., Narayana, PA., Comstock, J.P., and Hazlewood, C.F. Evaluation of diabetic

neuropathy by nuclear magnetic resonance technique. XI International Conference on Magnetic Resonance in Biological Systems, India, 1984

4. Misra, L.K., Narayana, PA., Beal, P.T., and Hazlewood, C.F. Developmental changes in

relaxation times of muscle water. Magn. Reson. Med. L:205, 1984 5. Jensen, D.J., Brey, W.W., Narayana, PA., Tong, V.P., and Delayre, J.L. The problem of rapidly

switched magnetic field gradients in magnetic resonance experiments. Fourth Annual Meeting on Biomedical Engineering Research in Houston, TX, February 14-15, 1986

6. Jensen, D.J., Brey, W.W., Tong, V.P., Narayana, PA., and Delayre, J.L. The problem of rapidly

switched magnetic resonance imaging. Fourth Annual Meeting of Biomedical Engineering Research in Houston, TX, February 14-15, 1986

7. Jensen, D.J., Brey, W.W., Tong, V.P., Narayana, PA., and Delayre, J.L. Magnetic resonance

imaging at 2 Tesla. Fourth annual Meeting of Biomedical Engineering Research in Houston, TX, February 14-15, 1986

8. Tong, V.P., Delayre, J.L., Jensen, D.J., Brey, W.W., and Narayana, PA. Designing a pulse

programmer programming utility for magnetic resonance imaging/spectroscopic applications. Fourth Annual Meeting of Biomedical Engineering Research in Houston, TX, February 14-15, 1986

9. Brey, W.W., Narayana, PA., Tong, V.P., and Jensen, D.J. Design and implementation of a two-

coil probe for NMR imaging and spectroscopy. Fourth Annual Meeting of Biomedical Engineering Research in Houston, TX, February 14-15, 1986

10. Jensen, D.J., Brey, W.W., Tong, V.P., Delayre, J.L., and Narayana, PA. An incremental phase

shifter and frequency modulator. Fourth Annual Meeting on Biomedical Engineering Research in Houston, TX, February 14-15, 1986

11. Jensen, D.J., Brey, W.W., Tong, V.P., Delayre, J.L., and Narayana, PA. An incremental phase

shifter and frequency modulator. 27th Nuclear Magnetic Resonance Spectroscopy Conference, Baltimore, MD, April 12-17, 1986

12. Jensen, D.J., Brey, W.W., Narayana, PA., Tong, V.P., and Delayre, J.L. Shortening the

gradient rise time on a 33 cm 2 T NMR imaging spectrometer. Metabolic NMR Workshop, April 12-13, 1986

13. Narayana, PA., Brey, W.W., Jensen, D.J., Tong, V.P., and Kulkarni, M.V. Water suppressed in

vivo proton spectroscopy with dress sequence. Society of Magnetic Resonance in Medicine Conference, Montreal, Canada, August 18-22, 1986

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14. Tong, V.P., Delayre, J.L., Jensen, D.J., Brey, W.W., and Narayana, PA. A flexible NMR pulse sequence editor. Society of Magnetic Resonance in Medicine Conference, Montreal, Canada, August 18-22, 1986

15. Jensen, D.J., Narayana, PA., Brey, W.W., Tong, V.P., and Delayre, J.L. Pulse sequence design

for volume selective excitation. Society of Magnetic Resonance in Medicine Conference, Montreal, Canada, August 18-22, 1986

16. Jensen, D.J., Narayana, PA., Brey, W.W., Tong, V.P., and Delayre, J.L.: Localized T1

measurements using volume selective excitation. Society of Magnetic Resonance in Medicine Conference, Montreal Canada, August 18-22, 1986

17. Wolinsky, J.S., Narayana, PA., Jensen, D.J., and Delayre, J.L. Magnetic resonance imaging of

experimental mumps meningoencephalitis. XII International Conference of Magnetic Resonance in Biological Systems, Todtmoos, Germany, September 8-12, 1986

18. Jensen, D.J., Delayre, J.L., Brey, W.W., Tong, V.P., and Narayana, PA. Volume localized

spin-lattice relaxation time measurements. Radiology 72nd Scientific Assembly of The Radiological Society of North America, Chicago, Illinois, November 30-December 5, 1986

19. Narayana, PA., Brey, W.W., Jensen, D.J., and Kulkarni, M.V. Pulse sequence for depth

resolved proton spectroscopy for detection of lactate. Fifth Annual Meeting of the Society of Magnetic Resonance Imaging, San Antonio, TX, February 28-March 4, 1987

20. Brey, W.W., Jensen, D.J., and Narayana, PA.: Correcting for intensity variation across surface

coil images. Fifth Annual Meeting of the Society of Magnetic Resonance Imaging, San Antonio, TX, February 28-March 4, 1987

21. Narayana, PA., Jensen, D.J., and Brey, W.W.: Magnetic Resonance imaging and in vivo

spectroscopy. Fifth Annual Meeting of the Society of Magnetic Resonance Imaging, San Antonio, TX, February 28-March 4, 1987

22. Jensen, D.J., Brey, W.W., and Narayana, PA.: Practical problems and solutions in spatially

resolved spectroscopy. Sixth Annual Meeting, Society of Magnetic Resonance in Medicine, New York, NY, August 17-21, 1987

23. Brey, W.W. and Narayana, PA.: Estimation of the surface coil profile to correct for sensitivity

variation in surface coil images. Sixth Annual Meeting, Society of Magnetic Resonance in Medicine, New York, NY, August 17-21, 1987

24. Kulkarni, M.V., McArdle, C.B., Yeakley, J.B., and Narayana, PA. MR evaluation of cervical

spine disorders using fast scanning: Comparison with cardiac gaited technique. 73rd Scientific Assembly of the Radiological Society of North America, November 29-December 4, 1987

25. Narayana, PA., Hazle, J.D., Jackson, E.F., Fotedar, L.K., and Kulkarani, M.V. In vivo 1H

magnetic resonance studies of leg muscle. Sixth Annual Meeting of the Society of Magnetic Resonance Imaging, February 27-March 2, 1988

23

26. Narayana, PA., Slopis, J.M., Jackson, E.F., Hazle, J.D., Kulkarni, M.V., and Butler, I.J. In vivo muscle magnetic resonance spectroscopic studies in mitochondrial cytopathy. Sixth Annual Meeting of the Society of Magnetic Resonance Imaging, February 27-March 2, 1988

27. Narayana, PA., Jackson, E.F., Hazle, J.D., Fotedar, L.K., and Flamig, D.P. In vivo localized

proton spectroscopic studies of human gastrocnemius muscle. Seventh Annual Meeting of the Society of Magnetic Resonance in Medicine, August 22-26, 1988

28. Narayana, PA., Slopis, J.M., Jackson, E.F., Fotedar, L.K., and Butler, I.J. In vivo muscle

magnetic resonance spectroscopy in a family with mitochondrial cytopathy. A defect in fat metabolism. Seventh Annual Meeting of the Society of Magnetic Resonance in Medicine, August 22-26, 1988

29. Hazle, J.H. and Narayana, P.A: A method of localization water suppressed proton spectroscopy

for the study of in vivo liver metabolism. Seventh Annual Meeting of the Society of Magnetic Resonance in Medicine, August 22-26, 1988

30. Jackson, E.F., Narayana, PA., and Kudrle, W.A. Volume localized spectroscopy using spatially

resolved spectroscopy and stimulated echo acquisition mode sequences. Seventh Annual Meeting of the Society of Magnetic Resonance in Medicine, August 22-26, 1988

31. Narayana, PA., Bohan, T.P., Slopis, J.M., and Butler, I.J. Proton magnetic resonance

spectroscopy of human brain: Effects of valproic acid. 74th Scientific Assembly of The Radiological Society of North America, November 27-December 2, 1988

32. Narayana, PA., Fotedar, L.K., Jackson, J.F., Bohan, T.B., Butler, I.J., and Wolinsky, J.S.

Regional proton magnetic resonance spectroscopy of brain. 74th Scientific Assembly of The Radiological Society of North America, November 27-December 2, 1988

33. Weirich, S.D., Cotler, H.B., Narayana, PA., and Harris, Jr., J.H. Histopathologic correlation of

magnetic resonance image signal patterns in a spinal cord injury model. 35th Annual Meeting of the Orthopaedic Research Society, Los Vegas, NV, February 6-9, 1989

34. Narayana, PA., Jackson, E.F., and Kudrle, W.A. Comparison of steam and CSI for proton

spectroscopy. Seventh Annual Meeting of The Society of Magnetic Resonance Imaging, February 23-March 1, 1989

35. Narayana, PA., Fotedar, L.K., Slopis, J.M., Fenstermacher, M.J., and Butler, I.J. Proton

magnetic resonance spectroscopy studies of exercise-induced changes in human gastrocnemius muscle. Seventh Annual Meeting of The Society of Magnetic Resonance Imaging, February 23-March 1, 1989

36. Narayana, PA., Fotedar, L.K., Jackson, E.F., Bohan, T.B., Butler, I.J., and Wolinsky, J.S.

Regional proton magnetic resonance spectroscopy of brain. Seventh Annual Meeting of The Society of Magnetic Resonance Imaging, February 23-March 1, 1989

37. Wolinsky, J.S., Narayana, PA., and Fenstermacher, M.J. Magnetic Resonance (MR)

spectroscopy in Multiple Sclerosis (MS). Session of Neuroimmunology and MS III, April 17, 1989

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38. Narayana, PA., Wolinsky, J.S., and Fenstermacher, M.J. Proton magnetic resonance

spectroscopy in Multiple Sclerosis. Eighth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 12-18, 1989, Amsterdam, The Netherlands

39. Jackson, E.F., Narayana, PA., and Kudrle, W.A. Localized proton spectroscopy using

stimulated echoes and chemical shift imaging. A comparison. Eighth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 12-18, 1989, Amsterdam, The Netherlands

40. Fotedar, L.K., Narayana, PA., Slopis, J.M., Pivarnik, J.M., Fenstermacher, M.J., and Butler, I.J.

Proton MRS of Exercise-Induced changes in human gastrocnemius muscle. Eighth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 12-18, 1989, Amsterdam, The Netherland

41. Narayana, PA. and Fenstermacher, M.J. Proton magnetic resonance spectroscopy of Ischemic

brain injury in humans: Serial studies. Eighth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 12-18, 1989, Amsterdam, The Netherlands

42. Narayana, PA., Johnston, D., and Flamig, D.P. Reproducibility of proton MRS of human brain:

A quantitative analysis. Ninth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 18-24, 1990, New York, NY

43. Narayana, PA., Slopis, J.M., Jackson, E.F., and Butler, I.J. Proton magnetic resonance

spectroscopic studies of hypertrophied muscle: Effect of botulinum toxin treatment. Ninth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 18-24, 1990, New York, NY

44. Jackson, E.F. and Narayana, PA. Design and implementation of a volume localized,

interleaved acquisition technique for 1H/31P studies. Ninth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 18-24, 1990, New York, NY

45. Jackson, E.F. and Narayana, PA. The effect of post-acquisition water suppression of magnetic

resonance spectra. Ninth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 18-14, 1990, New York, N.

46. Hazle, J.D., Narayana, PA., and Dunsford, H.A. In vivo magnetic resonance studies of chronic

carbon tetrachloride hepatotoxicity in rat. Ninth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 18-24, 1990, New York, NY

47. Narayana, PA., Wolinsky, J.S., Jackson, E.F., and McCarthy, M. Proton MRS of GdDTPA

enhanced Multiple Sclerosis lesions. Abstract # 118, pp. 1:156, 1991 48. Jackson, E.F., Narayana, PA., Slopis, J.M., White, M.A., and Butler, I.J: Proton MRS of water

and lipid changes in muscle during isometric exercise. Ninth Annual Meeting of The Society of Magnetic Resonance in Medicine, August 18-24, 1990, New York, NY

49. Narayana, PA., Butler, I.J., Slopis, J.M., Jackson, E.F., and Jaweed, M. Use of magnetic

resonance imaging and spectroscopy for the non-invasive monitoring of water and lipid changes

25

in soleus muscle during isometric exercise. 62nd Annual Scientific Meeting of the Aerospace Medical Association, May 5-9, 1991, Cincinnati, Ohio

50. Wolinsky, J.S., Narayana, PA., Jackson, E.F., and McCarthy, M. Localized proton magnetic

resonance spectroscopy (MRS) in Multiple Sclerosis (MS): Correlation with gadolinium-DTPA enhanced MRI. Annual Meeting of The American Academy of Neurology, 1991 41(S1):169

51. Narayana, PA., Wolinsky, J.S., Jackson, E.F., and McCarthy, M. Magnetic resonance of

Multiple Sclerosis: Correlation between proton spectroscopy and GdDTPA enhancement. 10th Annual Scientific Meeting of The Society of Magnetic Resonance in Medicine, San Francisco, CA., August 10-16, 1991, pp. 82

52. Narayana, PA., Kudrle, W.A., Liu, S.-J., Chernov, J.H., Butler, B.D., and Harris, Jr., J.H.

Magnetic resonance imaging of hyperbaric oxygen treated experimental spinal cord injury. 10th Annual Scientific Meeting of The Society of Magnetic Resonance in Medicine, San Francisco, CA, August 10-16, 1991

53. Jackson, E.F., Slopis, J.M., Narayana, PA., and Butler, I.J. Proton magnetic resonance

spectroscopy and imaging in isometric exercise of tibialis anterior muscle. 10th Annual Scientific Meeting of The Society of Magnetic Resonance in Medicine, San Francisco, CA, August 10-16, 1991

54. Kudrle, W.A., Narayana, PA., and Dunsford, H.A.: Magnetic resonance imaging of burn injury

in rats. 10th Annual Scientific Meeting of The Society of magnetic Resonance in Medicine, San Francisco, CA, August 10-16, 1991

55. Slopis, J.M., Jackson, E.F., Narayana, PA., and Butler, I.J.: Proton magnetic resonance

imaging of spectroscopic studies of the pathogenesis and treatment of juvenile dermatomyositis. Scientific Meeting of the Child Neurology Society, Portland, Oregon, October 3-5, 1991

56. Narayana, PA., Jackson, E.F., Slopis, J.M., and Butler, I.J. In vivo proton MRS of exercised

tibialis anterior muscle: Effect of heparin on lipid mobilization. 10th Annual Meeting of the Society for Magnetic Resonance Imaging, New York, NY, April 25-29, 1992

57. Jackson, E.F., Narayana, PA., and Wolinsky, J.S. Short echo time 1H spectroscopic imaging of

multiple sclerosis and normal brain. 10th Annual Meeting of the Society for Magnetic Resonance Imaging, New York, NY, April 25-29, 1992, Abstract # 347, pp. 515

58. Jackson, E.F., Narayana, PA., Wolinsky, J.S., and Falconer, J.C.: Volumetric analysis of

multiple sclerosis lesions with and without enhancement. 10th Annual Meeting of the Society for Magnetic Resonance Imaging, New York, NY, April 25-29, 1992, Abstract # 307, pp. 53

59. Kudrle, W.A. and Narayana, PA. SPOR : A robust fast spin echo sequence. 10th Annual

Meeting of the Society for Magnetic Resonance Imaging, New York, NY, April 25-29, 1992 60. Narayana, PA., Jackson, E.F., and Falconer, J.D. Quantitative volumetric measurements based

on magnetic resonance images. Inter- and intra-operator variability. International Conference on Medical Physics and Radiation Safety (ICMP-92), BARC, Bombay, INDIA, September 8-11, 1992

26

61. Butler, I.J., Narayana, PA, Jackson, E.F., Slopis, J.M., Herbert, A.A., and Bhatacharjee, M.B.

Magnetic resonance studies in the management of childhood myositois. Child Neurology Society presentation, New Orleans, LA., October 22-24, 1992

62. Jackson, E.F., Narayana, PA. Quantitative 3D analysis of Multiple Sclerosis Lesions With and

Without Enhancement. AAPM Annual meeting, Ontario, Canada, 1992 63. Narayana, PA. and Jackson, E.F. Inter- and intra-operator variability in the quantitative

volumetric measurement of MS lesions. 11th Annual Meeting of the Society for Magnetic Resonance Imaging, San Francisco, CA, March 25-31, 1993

64. Falconer, J.C. and Narayana, PA. Quantitative MRI of spinal cord injury in a rat model. 12th

Annual Meeting of the Society of Magnetic Resonance in Medicine, New York City, NY, August 14-20, 1993

65. Fitchard, E.E. and Narayana, PA. An automatic and efficient method for registration of MR

Image. 12th Annual Meeting of the Society of Magnetic Resonance in Medicine, New York City, NY, August 14-20, 1993

66. Jackson, E.F., Narayana, PA, and Doyle, T.J. The reproducibility of short echo time 1H

spectroscopic imaging studies of human brain. 12th Annual Meeting of the Society of Magnetic Resonance in Medicine, New York City, NY, August 14-20, 1993

67. Doyle, T., Narayana, PA, Jackson, E., and Wolinsky, J. Longitudinal, short echo time proton

spectroscopic imaging of MS. 12th Annual Meeting of the Society of Magnetic Resonance in Medicine, New York City, NY, August 14-20, 1993, pp. 1551

68. Kudrle, W.A., Jainendra, R., and Narayana, PA. An object oriented pulse sequence editor.

12th Annual Meeting of the Society of Magnetic Resonance in Medicine, New York City, NY, August 14-20, 1993

69. Kudrle, W.A., Narayana, PA, and Dunsford, H.A. Magnetic resonance imaging of electrical

burns in a rat model. 12th Annual Meeting of the Society of Magnetic Resonance in Medicine, New York City, NY, August 14-20, 1993

70. Fitchard, E.E. and Narayana, PA., An efficient registration method for 3-D brain images. 12th

Annual Meeting of the Society of Magnetic Resonance Imaging, Dallas, TX, March 5-9, 1994 71. Doyle, T.J., Narayana, PA, and Pathak, R. Automated processing software for proton

spectroscopic image data. 12th Annual Meeting of the Society of Magnetic Resonance Imaging, Dallas, TX, March 5-9, 1994

72. Falconer, J.C., Narayana, PA. Detection of Primary and Secondary Injury Events in Spinal

Cord Trauma Using Quantitative MRI and Correlative Measures. Second Meeting of SMR, San Francisco, CA, August 7-12, 1994

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73. Doyle, T.J., Bedell, B.J., Narayana, PA. Regional Distribution of N-Acetyl-Aspartate in Gray and White Matter in Human Brain. Second Meeting of SMR, San Francisco, CA, August 7-12, 1994

74. Narayana, PA., Wolinsky J.S., Doyle, T.J., Dimachkie, M.M. Serial two-dimensional proton

magnetic resonance spectroscopic imaging and GdDTPA enhanced MRI in MS. SMR. Second Meeting of SMR, San Francisco, CA, August 7-12, 1994

75. Wolinsky, J.S., Narayana, PA., Doyle, T.J., Lindsey, J.W. Serial 2D proton magnetic resonance

spectroscopic imaging (MRSI) of multiple sclerosis (MS). American Academy of Neurology, Seattle, WA, May 6-13, 1995

76. Bedell, B.J., Narayana, PA. Automatic Three-Dimensional MR Image Registration for Human

Brain. Third Meeting of SMR, Nice, France, August 19-25, 1995 77. Narayana, PA., Doyle, T.J., Wolinsky, J.S. Magnetic resonance spectroscopiuc imaging of

human brain. Fourteenth Annual Houston Conference on Biomedical Engineering Research, Houston, Texas, February 8-9, 1996

78. Narayana, PA., Falconer, J.C., Fenyes, D.A. Longitudinal magnetic resonance imaging of

spinal cord injury. Fourteenth Annual Houston Conference on Biomedical Engineering Research, Houston, Texas, February 8-9, 1996

79. Bedell, B.J., Narayana, PA., Wolinsky, J.S. Segmentation of MRI-defined multiple sclerosis

lesions using FLAIR-MIC and MR flow images. Scientific Program of the 48th Annual Meeting of the American Academy of Neurology, San Francisco, CA., March 23-30, 1996

80. Bedell, B.J., Narayana, PA., Wolinsky, J.S. A dual approach for minimizing lesion

classification on magnetic resonance images. Society of Magnetic Resonance Fourth Scientific Meeting and Exhibition, New York, N.Y., April 27 - May 3, 1996

81. Falconer, J.C., Narayana, PA. CSF suppressed high resolution diffusion imaging of the human

brain. Society of Magnetic Resonance Fourth Scientific Meeting and Exhibition, New York, N.Y., April 27 - May 3, 1996

82. Narayana, PA., Bedell, B.J., Wolinsky, J.S. Integrated technique for MRI-observed lesion

quantitation. Fifteen Annual Houston Conference on Biomedical Engineering Research, Houston, TX., February 13-14, 1997

83. Narayana, PA., Wolinsky, J.S., Doyle, T.J. Is perivenous inflammation an obligatory event for

demyelination in multiple sclerosis? Society of Magnetic Resonance Fifth Scientific Meeting and Exhibition, Vancouver, Canada, April 12-18, 1997

84. Bedell, B.J., Narayana, PA. Fast double inversion recovery sequence for white matter and CSF

suppression. Society of Magnetic Resonance Fifth Scientific Meeting and Exhibition, Vancouver, Canada, April 12-18, 1997

85. Narayana, PA. Segmentation techniques on multiparametric classification. Magnetic Resonance

Techniques in Multiple Sclerosis, First Advance Course, Milan, Italy, May 15-17, 1977

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86. Narayana, PA., Abbe, R., Liu, Shi-J., Dash, Promod. Is loss of cholesterol an early event

leading to secondary injury in spinal trauma? In vivo MRI and biochemical studies. International Society for Magnetic Resonance in Medicine Seventh Annual Meeting of the Section for Magnetic Resonance Technologists, Sidney, Australia, April 18-24, 1998

87. Zacharopoulos, N.G., Narayana, PA. Selective diffusion trace measurements of gray- and

white- matter in human brain with double-suppression EPI sequence. International Society for Magnetic Resonance in Medicine Seventh Annual Meeting of the Section for Magnetic Resonance Technologists, Sidney, Australia, April 18-24, 1998

88. Fenyes, D.A., Narayana, PA. In vivo EPI measurements of apparent diffusion tensor of normal

and injured spinal cord. International Society for Magnetic Resonance in Medicine Seventh Annual Meeting of the Section for Magnetic Resonance Technologists, Sidney, Australia. ISMRM Proceedings, pp. 1252, April, 1998

89. Hatfield, G.A., Steinberg, J.L., Narayana, PA., and Kramer, L.A. Gradient echo EPI T2* fMRI

without and with inversion recovery CSF suppression. International Society for Magnetic Resonance in Medicine Seventh Annual Meeting of the Section for Magnetic Resonance Technologists, Sidney, Australia. ISMRM Proceedings, pp.1442, April, 1998

90. Steinberg, J.L., Hatfield, G.A., Dougherty, D.M., Narayana, PA., Kramer, L.A., Shah, N.N.,

Wassef, A.A. fMRI of schizofrenic and normal subjects during performance of a working memory task. International Society for Magnetic Resonance in Medicine Seventh Annual Meeting of the Section for Magnetic Resonance Technologists, Sidney, Australia. ISMRM Proceedings, pp. 1590, April, 1998

91. Fotedar, L.K., Narayana, PA., Butler, I.J. In vivo longitudinal magnetic resonance imaging

studies of muscle disuse atrophy and recovery. International Society for Magnetic Resonance in Medicine Seventh Annual Meeting of the Section for Magnetic Resonance Technologists, Sidney, Australia. ISMRM Proceedings, pp. 461, April, 1998

92. Fotedar, L.K., Narayana, PA., Butler, I.J. Proton Magnetic Resonance Spectroscopy of Disuse

Atrophied Muscle: In Vivo Level and Fluid Shift Changes. International Society for Magnetic Resonance in Medicine Seventh Annual Meeting of the Section for Magnetic Resonance Technologists, Sidney, Australia. ISMRM Proceedings, pp. 1776, April, 1998

93. Steinberg, J.L., Hatfield, G.A., Doughterty, D.M., Narayana, PA., Kramer, L.A. Immediate and

delayed memory tasks during fMRI of schizophrenic and normal subjects. 4th International Conference on Functional Mapping of the Human Brain, Montreal, Canada, NeuroImage 1998 1:S894

94. Hatfield, G.A., Ulmer, J., Biswal, B., Steinberg, J.L., Narayana, PA. Increased fMRI signal

change with CSF suppression. RSNA Chicago, Ill. 1998 95. Hatfield, G.A., Biswal, B., Ulmer, J. Steinberg, J.L., Narayana, PA. Improved detection of CSF

suppressed fMRI signal using independent component analysis. RSNA, Chicago, Ill, 1998

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96. Narayana, PA., Abbe, R., Bilgen, M. Temporal changes in pathology in injured spinal cord tissue: In vivo MRI studies in acute phase. International Society for Magnetic Resonance in Medicine Eight Annual Meeting. Philadelphia, PA., May 23-23, 1999

97. O’Connor, P.W., Lee, L., Moscarello, M., Hunter, W., Narayana, PA., Wolinsky, J.S. A Phase-

1 study of micellar pacitaxell in the treatment of secondary progressive multiple sclerosis. Pacitaxel Study Group and the MRI Analysis Center

98. Wolinsky, J.S. and Narayana, PA. MRI and clinical correlations in a cross-sectional analysis of

patients in the open-label extension of the U.S. pivotal trial of Glatiramer Acetate (Copaxone) in relapsing multiple sclerosis. The Copolymer-1 Multiple Sclerosis Study Group and the MRI Analysis Center

99. Narayana, PA. and Wolinsky, J.S. Role of magnetic resonance in multi-center clinical trials of

multiple sclerosis. Biomedical Imaging Symposium: Visualizing the Future of Biology and Medicine. National Institutes of Health, Natcher Conference Center, Bethesda, MD, June 25-26, 1999

100. O’Connor, P.W., Lee, L., Moscarello, M., Hunter, W., Narayana, PA., Wolinsky, J.S. A Phase 1 study of micellar paclitaxel in the treatment of secondary progressive multiple sclerosis. Paclitaxel Study Group and MRI Analysis Center; Toronto ON, and Vancouver BC, Canada, and Houston, TX. Programs and Abstracts. American Neurological Association. Ann. Neurology 1999 46(3):470

101. Wolinsky, J.S., and Narayana, PA. Magnetic imaging and clinical correlations in a cross- sectional analysis of patients in the open-label extension of the US Pivotal Trial of Glatiramer Acetate (Copaxone) in relapsing multiple sclerosis. Programs and Abstracts. American Neurological Association. Ann. Neurology 1999 46(3):471

102. O’Connor, P.W., Lee, L., Hunter, W., Narayana, PA., Wolinsky, J.S. The meaning of quality of life in multiple sclerosis. Paclitaxel Study Group and MRI Analysis Center; Toronto ON, and Vancouver BC, Canada, and Houston, TX. Programs and Abstracts. American Neurological Association. Ann. Neurology 1999 46(3):502

103. Sharma, R., Yu, H., Wolinsky, J.S., Narayana, PA. Acetate metabolism is altered in some multiple sclerosis plaques. International Society for Magnetic Resonance in Medicine Eighth Scientific Meeting. Denver, CO., April 1-7, 2000 ISMRM Proceedings, pp. 629

104. Abbe, R., Vang, R., Bilgen, M., Narayana, PA. Spontaneous functional recovery following spinal cord injury: In vivo magnetic resonance imaging, behavioral and histopathological studies. International Society for Magnetic Resonance in Medicine Eighth Scientific Meeting. Denver, CO., April 1-7, 2000 ISMRM Proceedings pp. 2151

105. Bilgen, R., Abbe, R., Narayana, PA. Dynamic contrast-enhanced magnetic resonance imaging of experimental cord injury. International Society for Magnetic Resonance in Medicine Eighth Scientific Meeting. Denver, CO., April 1-7, 200. ISMRM Proceedings, pp. 2149

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106. Yu, H., Narayana, PA. Quantitative comparison of variable and constant repetition time proton spectroscopic imaging. International Society for Magnetic Resonance in Medicine Eighth Scientific Meeting. Denver, CO., April 1-7, 2000. ISMRM Proceedings, pp. 427

107. Sharma, R., Narayana, PA., Wolinsky, J.S. Proton magnetic resonance spectroscopic imaging of abnormal gray matter in multiple sclerosis. Proceedings 13th IEEE Symposium on Comp.-based Med. Appl. Houston, Texas, June 23-24, 2000, pp. 141

108. He, R., Narayana, PA. Detection and delineation of multiple sclerosis lesions in gadolinium-enhanced 3D T1-weighted MRI Data. . Proceedings 13th IEEE Symposium on Comp.-based Med. Appl. Houston, Texas, June 23-24, 2000 pp. 201

109. Wolinsky, J.S., Narayana, PA. Characteristics at entry into the glatiramer acetate study of primary progressive multiple sclerosis: The PROMiSe Trial. Proceeding 11th Meeting of the European Neurological Society, 2001

110. Elshafiey, I., Narayana, PA., Bilgen, M. Optimization of magnetic resonance diffusion tensor imaging of human brain. Proceedings 19th Annual Houston Conference on Biomedical Engineering Research. Houston, Texas, February 8-9, 2000

111. Bilgen, M., Narayana, PA., Elshafiey, I. Dynamic contrast-enhanced MRI of experimental spinal cord injury: in vivo studies. Proceedings 19th Annual Houston Conference on Biomedical Engineering Research. Houston, Texas, February 8-9, 2000

112. Narayana, PA. Imaging of a rat injury model. Proceedings 19th Annual Houston Conference on Biomedical Engineering Research. Houston, Texas, February 8-9, 2000

113. Wolinsky, JS, Narayana, PA. Characteristics at entry into the glatiramer acetate study of primary progressive multiple sclerosis: The PROMISe Trial. Eleventh Meeting of the European Neurological Society, Paris, April 25-25, 2001

114. Elshafiey, I, Narayana, PA. Exploration of b-space for diffusion tensor imaging of human brain. Proceedings of the 9th ISMRM Scientific Meeting in Glasgow, Scotland. April 21-27, 2001, pp. 1537

115. Narayana, PA., Abbe, R, Lai, D, Bilgen, M. Prognostic value of MRI in Spinal Cord Injury. Proceedings of the 9th ISMRM Scientific Meeting in Glasgow, Scotland. April 21-27, 2001, pp. 1623

116. Narayana, PA., Abbe, R, Grill, R, Bilgen, M. MRI of neuronal recovery in spinal cord injury. Proceedings of the 9th ISMRM Scientific Meeting in Glasgow, Scotland. April 21-27, 2001, pp. 127

117. Bilgen, M, Narayana, PA. A pharmacokinetic model for quantitative evaluation of spinal cord injury with dynamic contrast-enhanced MRI. Proceedings of the 9th ISMRM Scientific Meeting in Glasgow, Scotland. April 21-27, 2001, pp. 129

118. Wosik, J, Xie, L-M, Wang, F, Nesteruk, K, Bilgen, M, Narayana, PA. High temperature superconducting surface coils for 2 Tesla magnetic resonance imaging of spinal cord:

31

comparison with implanted coils. Proceedings of the 9th ISMRM Scientific Meeting in Glasgow, Scotland. April 21-27, 2001, pp. 1124

119. Elshafiey, I, Narayana, PA. Characterization of eddy current distortion effects on magnetic resonance axonography of human brain. Proceeding of the 28th Review of Progress in Quantitative Nondestructive Evaluation. Bowdoin College, Brunswick, Maine. July 29- August 3, 2001

120. Elshafiey ,I, Narayana, PA. In vivo magnetic resonance imaging of spinal cord at 7T. Proceeding of the 28th Review of Progress in Quantitative Nondestructive Evaluation. Bowdoin College, Brunswick, Maine. July 29-August 3, 2001

121. Narayana, PA., Elshafiey, I, Bilgen, M, He, R. In vivo biexponential diffusion tensor imaging of normal and injured spinal cord at 7T. Proceedings of the 2001 Southeastern Magnetic Resonance Conference of Florida. Gainesville, FL, October 26-28, 2001

122. Bilgen, M., Narayana, PA. Mohr diagram representation of anisotropic diffusion tensor measured in biological tissues. Proceedings of the ISMRM workshop Diffusion MRI: Biophysical Issues, Saint-Malo, France., March 10-12, 2002

123. He, R., Narayana, PA. Automatic Delineation of Enhancements in MS Proceedings of the 10th ISMRM Scientific Meeting in Honolulu, May 18-24, 2002, pp. 1266

124. Bilgen, M., Narayana, PA. Mohr Diagram Representation of Anisotropic Diffusion Tensor in MRI, Proceedings of the 10th ISMRM Scientific Meeting in Honolulu, May 18-24, 2002, pp. 1157

125. He, R., Narayana, PA. Global Optimization for retrospective 3D Registration of MR Images Proceedings of the 10th ISMRM Scientific Meeting in Honolulu,. May 18-24, 2002, pp. 1298

126. Elshafiey, I., Bilgen, M., He, R. ,and Narayana, PA., In Vivo Diffusion Tensor Imaging of rat Spinal Cord at Proceedings of the 10th ISMRM Scientific Meeting in Honolulu,. May 18-24, 2002, pp.248

127. Steinberg, J.L., Dougherty, D.M., Narayana, PA., Kramer, L.A., Wassef, A.A., Occhiline, V.B., Le, Y.L. and Shah, N.N. Event-related FMRI of working memory in schizophrenic and control subjects. Presented at the 8th International Conference on Functional Mapping of the Human Brain, June 2-6, 2002, Sendai, Japan

128. He, R., Narayana, PA. Improvements in LORETA for the Electroencephalographic Inverse Problem. The 6th World Multi-Conference on Systematics, Cybernetics and Informatics, July 14- 18, 2002

129. Narayana, PA., Wolinsky, J.S., He, R., Mehta, M., P.M. Group Multi-Center Proton MRSI of Primary Progressive Multiple Sclerosis. Eleventh Scientific Meeting and Exhibition, in Toronto, Ontario, Canada, July 10-16, 2003

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130. Narayana, PA., and He, R. Global Optimization of Mutual Information: Retrospective Registration of Rodent Brain MRI. Eleventh Scientific Meeting and Exhibition in Toronto, Ontario, Canada, July 10-16, 2003

131. Hasan, K.M, Narayana, PA., Computation of the Mean Diffusivity, Relative and Fractional Tensor Anisotrophy Maps. Eleventh Scientific Meeting and Exhibition in Toronto, Ontario, Canada, July 10-16, 2003

132. He, R., Narayana, PA. The Generation of Feature Map in High Dimensional Feature Space, 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Cancun, Mexico, September 17-21, 2003

133. Sajja, B. R., He, R., Mehta, M. and Narayana, PA. Automated Quantitation of Proton Magnetic Resonance Spectroscopic Imaging 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Cancun, Mexico, September 17-21, 2003

134. Hasan, K. M., Narayana, PA. A Novel Multi-Faceted Icosahedral Diffusion Tensor Encoding Scheme for Mapping the Full Human Brain in 10 Minutes. World Congress on Medical Physics and Biomedical Engineering, in Sydney, Australia August 24-29, 2003

135. He, R., Mehta, M., Narayana, PA. Efficient Global Optimization for Retrospective Three- Dimensional Magnetic Resonance Image Registration. World Congress on Medical Physics and Biomedical Engineering, in Sydney, Australia, August 24-29, 2003

136. Narayana, PA. Advanced MR Techniques in Traumatic Spinal Cord Injury. Presented at the National Neurotrauma Society Symposium, in Biloxi, Mississippi, November 6-7, 2003

137. He, R. and Narayana, PA. Higher is Better: High Dimensional Feature Space Analysis for Tissue Segmentation; and Spontaneous Recovery Following SCI: In vivo Longitudinal Diffusion Tensor Imaging Studies at the ISMRM 12th Scientific Meeting & Exhibition in Kyoto, Japan, May 15-21, 2004

138. Narayana, PA., Elshafiey, I., and Bilgen, M. Spontaneous Recovery Following Spinal Cord Injury: In vivo longitudinal Diffusion Tensor Imaging Studies at the ISMRM 12th Scientific Meeting & Exhibition in Kyoto, Japan, May 15-21, 2004

139. Sajja, B.R., Datta, S., He, R. and Narayana, PA. A Unified Approach for Lesion Segmentation on MRI of MS at the 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society in San Francisco, CA, September 1-5, 2004

140. He, R., Datta. S., Sajja, B.R., Mehta, M. and Narayana, PA. Adaptive FCM with contextual constrains for segmentation of multi-spectral MRI; 6th Annual International Conference of the IEEE Engineering in Medicine and Biology Society in San Francisco, CA, September 1-5, 2004

141. He, R., Mehta, M. and Narayana, PA. Color Coding for Visualization of the Directional Information of DTI; 6th Annual International Conference of the IEEE Engineering in Medicine and Biology Society in San Francisco, CA, September 1-5, 2004

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142. Datta, S., Sajja, B.R., He, R., and Narayana, PA. Automatic Segmentation of Black Holes in Multiple Sclerosis on MR Images at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

143. Hasan, KM; Sajja, BR; Gupta R.K; Wolinsky, JS, Narayana, PA. Diffusion Tensor Fractional Anisotropy and Compact Fiber Tracking of the Normal-Appearing Seven Segments of the Corpus Callosum in Healthy Adults and Relapsing-Remitting Multiple Sclerosis Patients at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

144. B.P. Kanabar, K.M. Hasan, B.R. Sajja, PA. Narayana. A Diffusion Tensor Imaging based semi-automated segmentation and subdivision of the human corpus callosum: correlation of anisotropy and callosal area and application to gender based differences at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

145. R.K. Gupta, K.M. Hasan, R. Trivedi, B. Kanabar, M. Pradhan, V. Das, N.A. Parikh, Narayana, PA. Diffusion Tensor Imaging of Developing Human Cerebrum at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

146. V. Gupta, R.K. Gupta, S. Saksena, K.M. Hasan, M. Husain, R. Trivedi, A. Agrawal, Narayana, PA. Diffusion Tensor Imaging of Post-Traumatic Epilepsy at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

147. R.K. Gupta, K.M. Hasan, A. M. Mishra, D. Jha, M. Husain, K.N. Prasad, Narayana, PA. Does Increased Fractional Anisotropy in Brain Abscess Imply White Matter Tracts on DTI? The 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

148. Sundberg, LM; Grill, RJ; Deo, A; Hasan, KM; Narayana, PA. DTI-Histology Correlation in Spinal Cord at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7- 13, 2005

149. F. Moeller, K.M. Hasan, J.L. Steinberg, L.A. Kramer, PA. Narayana. DTI-Relationship to Behavior in Cocaine Dependence at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

150. D.M. Cohen, P. Ahobila, T. Chacko, J. Ramu, PA. Narayana. Longitudinal Changes in Vascular Permeability in Spinal Cord Injury: Dynamic Contrast Enhanced MRI at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

151. B.R. Sajja, S. Datta, R. He, PA. Narayana. Minimization of False MS Lesion Classifications on MR Images: Quantitative Validation at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

152. P. Hou, K.M. Hasan, C.W. Sitton, J.S. Wolinsky, PA. Narayana. Quantitative Analysis of Contrast Efficiency of Phase Sensitive T1IR and its Primary Applications to Neuroimaging at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

153. L. Xue, M. Kamel, L. Xie, J. Wosik, PA. Narayana. SNR Limit for Cryogenic Arrays at the 13th Annual ISMRM Scientific Meeting in Miami Beach, FL on May 7-13, 2005

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154. PA. Narayana. Cortical Reorganization in NT3 Treated Experimental Spinal Cord Injury: Functional Magnetic Resonance Imaging at the National Neurotrauma Society Symposium in Washington D.C. on November 10-11, 2005

155. PA. Narayana. Effect of NT3 on Fiber Tract Integrity in Experimental Spinal Cord Injury: Serial Diffusion Tensor Imaging at the National Neurotrauma Society Symposium in Washington, D.C. on November 10-11, 2005

156. A. Deo, R. J. Grill, K. M. Hasan, PA. Narayana. In vivo Longitudinal Diffusion Tensor Imaging of Spinal Cord Injury in Rats at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

157. A. Deo, K. M. Hasan, PA. Narayana. In vivo Regional Diffustion Tensor Metrics of Rodent Spinal Cord at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

158. H. V. Bhat, B. R. Sajja, S. Datta, PA. Narayana. Fast Analysis of 1H Magnetic Resonance Spectroscopic Imaging Data: An Artificial Neural Network Based Approach at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

159. K. B. Ghaghada, K. H. Bockhorst, S. Mukundan, PA. Narayana, A. V. Annapragada. Contrast-Enhanced High Resolution MR Angiography of the Rat Spinal Region at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

160. K.V. Mogatadakala, S. Datta, A.H. Poonawalla, K.M. Hasan, J.S. Wolinsky, PA. Narayana. Identification of Abnormal White Matter in Multiple Sclerosis at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

161. S. Datta, B.R. Sajja, R. He, J.S. Wolinsky, PA. Narayana. Segmentation of Grey and White Matter on MR Brain Images in Multiple Sclerosis at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

162. X. Deng, PA. Narayana. Fast Contour Extraction in High Resolution In Vivo Rat Spinal Cord MR Images at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

163. K. M. Hasan, C. W. Ahn, R. K. Gupta, L. Kramer, L. Swing-Cobbs, J. M. Fletcher, PA. Narayana. Diffusion Tensor Longitudinal Eigenvalues are Different in the Body of the Corpus Callosum of Age Matched Male and Female Adults at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

164. L. M. Sundberg, P. Ahobila-Vajjula, PA. Narayana. The Effects of Pro- and Anti- Angiogenic Factor son Spinal Cord Injury at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

165. R. He, S. Datta, B. R., Sajja, PA. Narayana. Histogram-Based Acceleration on EM Algorithm for Segmentation of Multi-Spectral MRI with Contextual Constrains at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

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166. J. Ramu, K. H. Bockhorst, K. V., Mogatadakala, R. J. Grill, PA. Narayana. Functional Magnetic Resonance Imaging (fMRI) of Neurotrophin-3 (NT3) Treated Spinal Cord Injured Rats at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

167. A. M. Mishra, R. K. Gupta, K. N. Prasad, A. Prasad, K. M. Hasan, K. N. Prasad, M. Husain, N. Husain, S. Kumar, PA. Narayana. Fractional Anisotropy is a Surrogate Marker for Neuroinflammatory Molecules in Brain Abscess at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

168. M. Haris, R. K. Gupta, N. Husain, K. M. Hasan, L. Pal, PA. Narayana. Measurement of DTI Metrics in Hemorrhagic Brain Legions: Its Possible Implication in Imaging Interpretation at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

169. R. Trivedi, G. K. Malik, R. K. Gupta, K. M. Hasan, M. Hasan, A. Gupta, C. M. Pandey, PA. Narayana. Serial Quantitative Diffusion Tensor MRI of the Term Neonatos with Hypoxic-ishemic Encephalopathy (HIE) at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

170. A. M. Mishra, R. K. Gupta, K. Nath, A. Prasad, K. M. Hasan, K. N. Prasad, M. Husain, N. Husain, S. Kumar, P. A. Narayana. Diffusion Tensor Fraccional Anisotropy is a Potential Surrogate Marker for Neuroinflammatory Molecules in Brain Abscess at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

171. S. Saksena, R. K. Gupta, K. M. Hasan, A. Agrawal, M. Haris, C. M. Pandey, PA. Narayana. Focal Wallerian Degeneration of Corpus Callosum in Large Middle Cerebral Artery Stroke: Serial Diffusion Tensor Imaging at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

172. R. Trivedi, R. K. Gupta, A. Agrawal, K. M. Hasan, A. Gupta, K. N. Prasad, PA. Narayana. Assessment of White Matter Damage in Subacute Sclerosing Panencephalitis Using Quantitative Diffusion Tensor MRI at the 14th Annual ISMRM Scientific Meeting in Seattle, WA on May 6-12, 2006

173. Trivedi, R, Gupta, A., Malik, GK, Gupta, RK, Hasan, KM, Prasad, KN, Narayana, PA. Quantitative DTI Assessment of Periventricular White Matter Changes in Neonatal Meningitis at the 14th Annual ISMRM Scientific Meeting in Seattle, WA

174. Poonawalla AH, Hou P, Nelson F, et al. MRI of Cervical Spinal Cord Lesions in Multiple Sclerosis with Phase-sensitive T1-weighted Inversion Recovery [abstr]. In: Radiological Society of North America scientific assembly and annual meeting program. Oak Brook, Ill: Radiological Society of North America, 2006, 218-219

175. Wolinsky JS, Narayana PA, Johnson K. A Composite MRI Score (Z4) Predicts Disability Over the Next 4.5 Years in a Prospectively Followed Cohort of Subjects on Glatiramer Acetate. AAN, 2006

176. Poonawalla AH, Mogatadakala VK, Hasan KH et al. Increased Fractional Anisotropy in

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cortical lesions in multiple sclerosis 15th Annual ISMRM Scientific Meeting in Berlin, 2007

177. Tao G, He R, Poonawalla AH, Narayana PA. Nonlinear Image Registration with Voxel Adaptive Regularization to Correct for EPI-induced Geometric Distortions. 15th Annual ISMRM Scientific Meeting in Berlin, 2007

178. Poonawalla AH, Datta S, Nelson F, Wolinsky JS, Narayana PA. High Resolution MRI of Cortical Lesions in Multiple Sclerosis. 15th Annual ISMRM Scientific Meeting in Berlin, 2007

179. Sajja BR, Datta S, He R, Narayana PA. Fast Segmentation of MR Brain at 3T using Phase Sensitive Inversion Recovery Images. 15th Annual ISMRM Scientific Meeting in Berlin, 2007

180. Sundberg L, Herrera J, Narayana PA. Longitudinal Studies of Spinal cord Contusion Injury Using Magnetic Resonance Imaging. National Neurotrauma Society Symposium in Orlando, Florida, 2008

181. Herrera JJ, Ramu J, Li A, Chacko T, and Narayana PA. Discrepancies Between DTI Measures and Histology in Spinal Cord and Brain in Experimental Animal Models. 16th Annual ISMRM Scientific Meeting in Toronto, Canada, 2008

182. Liu R, Hou P, Bockhorst KH, He R, Narayana PA. Automatic Analysis of Quantitative Cerebral Perfusion in Rodents, 16th Annual ISMRM Scientific Meeting in Toronto, Canada, 2008

183. Liu, R; Hou, P; Bockhorst, KH; He, R; Narayana, PA. Automatic Analysis of Quantitative

Cerebral Perfusion in Rodents [PDF] Diffusion & Perfusion Studies in Animal Models. ISMRM, Toronto, Canada, 2008

184. Hasan, KM; Halphen, Cr; Kamali, A; Wolinsky, JS; Narayana, PA. Caudate Nuclei Degeneration in Multiple Sclerosis: A Multi-Modal Quantitative MRI Approach. Multiple Sclerosis: MR Analysis. ISMRM, Toronto, Canada, 2008

185. Hasan, KM.; Halphen, C; Kamali, A; Wolinsky, JS; Narayana, PA. A Diffusion Tensor

Imaging Surrogate Marker of Brain Atrophy in Multiple Sclerosis. Diffusion Measures of Disease in MS. ISMRM, Toronto, Canada, 2008

186. Herrera, Juan; Ramu, Jaivijay; Li, Alex; Chacko, Tessy; Narayana, PA. Discrepancies

Between DTI Measures and Histology in Spinal Cord and Brain in Experimental Animal Models: Advanced Imaging of the Spine & Spinal Cord. ISMRM, Toronto, Canada, 2008

187. Tao, Guozhi; He, Renjie; Datta, Sushmita; Narayana, PA. Inverse Consistent Geometric

Flow Based Nonlinear Registration Driven by Mutual Information Image Simulation & Analysis. ISMRM, Toronto, Canada, 2008

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188. Datta, S; Sajja, BR; He, R; Dieber, JM.; Narayana, PA. Segmentation of MR Brain Images with Intensity Correction and Partial Volume Averaging Image Segmentation. ISMRM, Toronto, Canada, 2008

189. Husain, M; Kumar, R; Gupta, RK; Hasan, KM.; Haris, M.; Agarwal, A; Narayana, PA. Serial Changes in Corpus Callosum Diffusion Tensor Imaging (DTI) Metrics in Moderate Traumatic Brain Injury (TBI) and Its Correlation with Neuro-Cognitive Functions: DTI of the Damaged Brain. ISMRM, Toronto, Canada, 2008

190. Kumar, M; Gupta, RK.; Trivedi, R.; Husain, M; Behari, S; Malik, GK.; Kureel, SN; Rathore,

RKS; Narayana, PA. Temporal Brain White Matter Maturation in Spina Bifida Cystica (SBC) with Diffusion Tensor Imaging. Pediatric Brain: DTI, Structural. ISMRM, Toronto, Canada, 2008

191. Gupta, RK.; Trivedi, R; Shah, V; Tripathi, M; Rathore, RKS; Kumar, M; Narayana, PA.

Treatment-Induced Plasticity in Central Motor Pathways in Cerebral Palsy: Diffusion Tensor Imaging: Pediatric Brain: DTI, Structural. ISMRM, Toronto, Canada, 2008

192. Patel, CB; Cohen, DM; Ahobila-Vajjula, P; Sundberg, LM; Chacko, T; Narayana, PA.

Effect of VEGF Treatment on the Blood-Spinal Cord Barrier Permeability in Experimental Spinal Cord Injury: Dynamic Contrast-Enhanced Magnetic Resonance Advanced Spinal Cord Imaging - ISMRM Honolulu, HI, 2009

193. Bockhorst, KH; Ramu, J; Mogatadakala, VK; Hui, CK; Narayana, PA. Fully Automated

DTI Postprocessing Embedded in Scanner Control Software: Deghosting, Denoising, Smoothing, and Registration to a Standard Atlas Image Registration - ISMRM Honolulu, HI, 2009

194. Poonawalla, AH; Datta, S; Juneja, V; Nelson, F; Wolinsky, JS; Cutter, G; Narayana, PA.

Improved Correlation of Composite MRI Scores with EDSS in Multiple Sclerosis; Advanced Neuroimaging in MS - ISMRM Honolulu, HI, 2009

195. Qian, Junchao; Herrera, Juan; Narayana, Ponnada A. In Vivo MRS Monitor Delayed

Neurodegeneration in Experimental Spinal Cord Injury. Advanced Spinal Cord Imaging -ISMRM Honolulu, HI, 2009

196. Narayana, Ponnada A.; Session: Perfusion & Permeability: DSC-MRI - ISMRM Honolulu,

HI, 2009

197. Tao, Guozhi; Datta, Sushmita; He, Renjie; Narayana, PA. Atrophy and Shape Changes in Deep Gray Matter in Multiple Sclerosis: A Tensor Based Morphometry. Multiple Sclerosis. 17th Annual ISMRM Scientific Meeting in Honolulu, HI, 2009

198. Sajja, Balasrinivasa R.; Bhat, Himanshu; Boska, Michael D.; Narayana, PA. Automatic

Detection of Lipid Peaks in MR Spectroscopic Image Data Using Artificial Neural Networks. Metabolite Quantitation Methodology. Multiple Sclerosis. 17th Annual ISMRM Scientific Meeting in Honolulu, HI, 2009

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199. Ip, Flora S.; Huang, Jenny; Bockhorst, Kurt H.; Mogatadakala, Kishore; Blasdel, Terry L.; Narayana, PA; Smith, Earl L., III; Wosik, Jarek. Counter Rotating Current Coil for 3-D Eye Growth Study of Infant Rhesus Monkeys. Multiple Sclerosis. 17th Annual ISMRM Scientific Meeting in Honolulu, HI, 2009

200. Hasan, Khader M.; Kamali, Arash; Iftikhar, Amal; Datta, Sushmita; Nelson, Flavia;

Wolinsky, Jerry S.; Narayana, PA. Diffusion Tensor Tractogrpahy Quantification of Wallerian Degeneration of the Uncinate Fasciculus in Multiple Sclerosis. Multiple Sclerosis & White Matter Imaging - EPOS Multiple Sclerosis. 17th Annual ISMRM Scientific Meeting in Honolulu, HI, 2009

201. Sundberg, Laura M.; Herrera, Juan; Narayana, PA. Vascular Modulation of SCI: A

Longitudinal MRI Study Advanced Spine Imaging - EPOS ISMRM Honolulu, HI, 2009

202. Poonawalla, Aziz Hatim; Datta, Sushmita; Juneja, Vaibhav; Nelson, Flavia; Wolinsky, Jerry S.; Cutter, Gary; Narayana, PA. Inverse Dependence Between Patient Population and Correlation of Composite MRI Scores with EDSS in Multiple Sclerosis. Advanced Neuroimaging in MS - ISMRM Honolulu, HI, 2009

203. Bockhorst, KH.; Rhea, HC; Liu, R; Perez-Polo, JR; Narayana, PA. Normobaric

Hyperoximia Increases Cerebral Injury Caused by Perinatal Hypoxia: DTI Study in Rats. Advanced Pediatric Neuroimaging - ISMRM Honolulu, HI, 2009

204. Liu, R; He, R; Bockhorst, KH.; Mogatadakala, VK. Quantitative Cerebral Perfusion in

Rodents Assisted by Susceptibility Weighted Imaging. ISMRM Honolulu, HI, 2009 205. Patel, Chirag B.; Narayana, PA. Angiopoietin-1 Reduces Blood-Spinal Cord Barrier Permeability and Lesion Volume in the Acute Phase of Spinal Cord Injury: MRI and Histological Studies. National Neurotrauma Soc. 2009

206. Bockhorst, KH; Ramu, Jaivijay; Mogatadakala, VK, Hui, CK; Narayana, PA. Fully Automated DTI Postprocessing Embedded in Scanner Control Software: Deghosting, Denoising, Smoothing, and Registration to a Standard Atlas. Image Registration. ISMRM Stockholm 2010

207. Qian, J; Herrera, JJ; Narayana, PA. In Vivo MRS Monitor Delayed Neurodegeneration in Experimental Spinal Cord Injury. Advanced Spinal Cord Imaging. ISMRM Stockholm 2010

208. Patel, Chirag. Angiopoietin-1 Reduces Blood-Spinal Cord Barrier Permeability and Lesion Volume in the Acute Phase of Spinal Cord Injury: MRI and Histological Studies. ISMRM Stockholm 2010 209. Bockhorst KH; Rea, HC; Liu, R; Wosik, Jarek; Perez-Polo, JR; Narayana, PA. Hyperoximic Therapy of Hypoxic Neonatals Increases Cerebral Injury. DTI Study in Rats. ISMRM Stockholm 2010

210. Herrera, JJ; Narayana, PA; Combined Vegf and Angiopoietin-1 Gene Transfer Using Aav Vectors After Spinal Cord Injury. Animal Models of Brain Disease ISMRM Stockholm 2010

211. Bockhorst, KH; Hui, CK; Narayana, PA. Fully Automatic Postprocessing and Evaluation

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of DTI Data: Unsupervised Pipeline for Batch Jobs. Diffusion Artifacts and Reproducibility. ISMRM Stockholm 2010

212. Bockhorst, KH; Rea, HC; Liu, R; Wosik, J; Perez-Polo, JR; Narayana, PA. Hyperoximic Therapy of Hypoxic Neonatals Increases Cerebral Injury. DTI Study in Rats. Animal Models of White Matter Disease and Neurodegeneration. ISMRM Stockholm 2010

213. Wosik, J; Xie, Leiming; Xue, Lian, Nesteruk, K; Bockhorst, K; Narayana, PA. Investigation of Decoupling Techniques for Two-Element Cryogenic Arrays. Intraluminal, Micro and Cryo Coils. ISMRM Stockholm 2010

214. Datta, S; Wolinsky, JS; Narayana, PA. Knowledge-Driven Automated Segmentation of Cortical Lesions on MR Brain Images in MS Multiple Sclerosis I. ISMRM Stockholm 2010

215. Sundberg, L; Herrera, JJ; Nesic, Olivera; Narayana, PA. Vascular Endothelial Growth Factor - A Novel Player in SCI Pain. Animal Models of White Matter Disease. ISMRM Stockholm 2010

216. Goel, P., Narayana, PA, Datta, S., Bockhorst, K.H.J., Navarro, J.C., Robertson, C.S. Atrophy in Rats Induced with mild TBI and Hemorrhagic Shock: A TBM-based analysis ISMRM, Montreal, Canada May 2011

217. Herrera, J., Narayana, PA, Vasculary Stabilization with Angiopoitin-1 Improves Outcome in Experimental Spinal Cord Injury ISMRM, Montreal, Canada May 2011

218. Tefera, G., Zhou, Y., Narayana, PA, Reproducibility of Fiber bundles from Different Subsampled Q-Space DSI Data Set ISMRM, Montreal, Canada May 2011

219. Narayana, PA. Effect of Chronic Cocaine Administration in Rodents: In vivo DTI Studies, 73rd Annual CPDD Scientific Meeting, Hollywood, Florida 2011

220. Bockhorst, KH, Hui, CK, Goel, P, Narayana, PA. Effect of Registration on Fractional Anisotropy values, Proc. of the 20th Scientific Meeting of the ISMRM, Melbourne, 2012

221. Narayana, PA, Wolinsky, JS, Cutter, G, Lublin, F, Datta, S, Goel, P. A pipeline for brain atrophy determination: Application to the CombiRx Clinical Trial, Proc. of the 17th Annual Meeting of the ACTRIMS, San Diego, California, June 1, 2012

222. Zhou, Y, Goel, P, Sun, X, Narayana, PA. Heterogeneity in Cerebral Blood Flow in Brain White Matter, Proc. of the 18th Annual Meeting of the OHBM, Beijing 2012

223. Hasan, KM, Steinberg, JL, Moeller, GF, Ma, L, Frye, RE, Narayana, PA. Health Human Brain and Patient Customized Quantitative MRI Templates and their interplay using VBM. Proc. of the 18th Annual Meeting of the OHBM, Beijing, China 2012

224. Narayana, PA, Govindarajan, KA, Goel, P, Datta, S, Lincoln, JA, Cofield, SS, Cutter, GR, Lublin FD, Wolinsky, JS. Regional Cortical Thickness in Relapsing Remitting Multiple Sclerosis: A Multi-Center Study program at 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

225. Govindarajan, KA, Narayana, PA. A Comprehensive Evaluation of Regional Cortical Thickness in a Large Cohort of Health Controls: Gender and Field Strength Dependence.

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Normal Developing Brain, Poster at 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

226. Kramer, LA, Cohen, AM, Heinbigner, JH, Carson, WK, Barreto, AD, Brod, SA, Narayana, PA, Wolinsky, JS. Contrasted Enhanced Magnetic Resonance Venography with Gadofosveset Trisodium, CV Image Processing program at 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

227. Hasan, KM, Liangsuo, MA, Kramer, LA, Lane, SD, Steinberg, JS, Narayana, PA, Moeller, GF. Diffusion Tensor Markers of the Neurobiology of Cocaine Addiction. Brain Diffusion Imaging & Neuroeducation program. 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

228. Tefera, GB, Zhou, Y, Narayana, PA. Effect of Order and Sharpening on Orientation Distribution function for Identifying Fiber Orientations in Higher Oder Tensor Model. Fibre PDF’s & Tractography program. 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

229. Bockhorst, KH, Garcia, R, Gaddam, SK, Robertson, CS, Narayana, PA. Erythropoitin (EPO) as Treatment of Mild Traumatic Brain Injury: A Multi Modal MRI Study. Animal Models Other than Stroke program. 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

230. Zhou, Y, Chen, L, Sun, X, Datta, S, Wolinsky JS, Narayana, PA. MRI-Based Pseudo-Continuous Arterial Spin Labeling Suggested Reduced Perfusion in Patients with Multiple Sclerosis. Advanced MRI in Multiple Sclerosis program. 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

231. Datta, S, Staewen, TD, Goel, P, Cofield, SS, Cutter, GR, Lublin, FD, Wolinsky, JS, Narayana, PA. Regional Gray Matter Atrophy in Multiple Sclerosis Using Tensor Based Morphometry: A Multi-Center Study. Multiple Sclerosis & Deteriorating Diseases program. at 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

232. Zhou, Y, Chen, L, Sun, X, Patel, V, Wolinsky, JS, Narayana, PA. Reproducibility of Total Cerebral Blood Flow and Determination of Tagging Efficiency in PCASL Using Gates and Non-Gated PCMRA. Arterial Spin Labeling program. at 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

233. Hasan, K, Narayana, PA. Semiautomatic Segmentation and Quantification of Volume, T2 Relaxation Time and Mean Diffusivity of the Human Brain CSF Compartments Across the Lifespan. Diffusion Applications program. 21st Scientific Meeting of the ISMRM, Salt Lake City, Utah 2013

234. Refaat E. Gabr, Amol Pednekar, Xiaojun Sun and Ponnada A. Narayana, “Online Brain Tissue Classification in Multiple Sclerosis using a Scanner-integrated Image Analysis Pipeline”, International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP), (3) 2014: 106-110, Lisbon, Portugal, 2014

B. REFEREED ORIGINAL ARTICLES IN JOURNALS: (Either in print or accepted for publication)

41

1. Narayana, PA. Energy levels of Nd (IV) and ER (IC) in Y203. Can. J. Phys. 1969 47:2753-2761

2. Narayana, PA. and Venkateswarlu, P. Electronic absorption spectrum of NH4C1:Ni 2+. J.

Chem. Phys. 1970 52:5159-5163 3. Narayana, PA. and Venkateswarlu, P. Optical absorption of CO 2+ in zinc acetate single

crystals. J. Chem. Phys. 1970 53:281-299 4. Narayana, PA. and Venkateswarlu, P. Optical absorption of CO 2+ in NH4C1 single crystals

and phase transition studies. Proc. Ind. Acad. Sci. 1970 LXXII:249-260 5. Narayana, PA., Srinivisan, T.M., and Sastry, K.V.L.N. EPR of NaF:Mn2+. Chem. Pys.

Let. 1970 5:278-280 6. Narayana, PA., Srinivisan, T.M., and Sastry, K.V.L.N. Saturation Behavior of NH4C1:CO

2+ at 4.2K. Phys. Stat. Sol. 1970 41:K9-K11 7. Narayana, PA. and Sastry, K.V.L.N. Angular variation intensities of forbidden lines of

MgO:Mn 2+ in parallel and perpendicular configurations. J. Chem. Phys. 1971 54:2281-2281

8. Narayana, PA. Angular variation of intensities of forbidden lines in CaCO3:Mn 2+. J.

Chem. Phys. 1971 55:4283-4286 9. Narayana, PA. and Sastry, K.V.L.N. EPR lineshapes of polycrystalline ammonium

aluminum alum:VO 2+. J. Chem. Phys. 1972 57:1805-1806 10. Narayana, PA. and Sastry, K.V.L.N. Core polarization of NH4Br"Cu 2+. J. Chem. Phys.

1972 57:3266-3268 11. Narayana, PA. and Sastry, K.V.L.N. EPR studies of [CuCl42NH3]2-. J. Chem. Phys. 1973

58: 4381-4383 12. Narayana, PA. and Sastry K.V.L.N. EPR studies of HN4Br:Cu 2+. J. Chem. Phys. 1973

58:769-771 13. Narayana, PA. Temperature variation of hyperfine coupling constant of Mn 2+ in cubic

crystals. Phys. Rev. 1973 B8:5332-5334 14. Narayana, PA. Overlap contribution to the zero field splitting in K2MgF4:Mn 2+. Phy.

Rev. 1974 B10:2676-2680 15. Narayana, PA. and Gogan, N.J. Zero point spin deviation in MnO. Can. J. Phys. 1995-

1997, 1974 52 16. Narayana, PA. and Gogan, N.J. Off diagonal contribution to the hyperfine anusitrophy of

vanadyl and chromyl complexes. J. Chem. Phys. 1974 61:2262-2264

42

17. Gogan, N.J.H., Chu, C.K., and Narayana, PA. ESR of organometallics: II. Spectra studies and extended Huckel calculations on substituted benzoylcyclopentadienyl manganese tricarbonyl complexes. J. Organometallics 1975 92:207-213

18. Kevan, L., Bowman, M.D., Narayana, PA., Boeckman, R.K., Yudanov, V.G., and

Tsvetkov, Yu.D. Electron spin echo envelope modulation of trapped radicals in glassy systems: Application to the molecular structure around excess electrons in �-irradiated 2-methyltetra-hydrofuron glass. J. Chem. Phys. 1975 63:409-416

19. Narayana, PA., Bowman, M.K., Kevan, L., Yudanov, V.F., and Tsvetkov, Yu.D. Electron

spin echo modulation: Application to the molecular structure around excess electrons in irradiated 10M NaoD glass. J. Chem. Phys. 19785 63:3365-3371

20. Schlick, S., Narayana, PA., and Kevan, L. ESR lineshapes of trapped electrons in �-

irradiated 17O enriched 10M NaOH alkaline ice glass: Model for the geometric structure of the trapped electron. J. Chem. Phys. 1976 64:3153-3160

21. Fueki, K., Narayana, PA., and Kevan, L. A semicontinum model for solvated electrons in

alcohol alkane solutions and glasses. J. Chem. Phys. 1976 64:4571-4577 22. Narayana, PA. and Kevan, L. Solution ENDOR studies of tritbutyl phenoxy radical:

Nuclear relaxation mechanisms. J. Magn. Reson. 1976 24:137-147 23. Narayana, PA. and Kevan, L. Geometrical structure of solvated electron in �-irradiated 3-

methylpentane glass at 77K from an analysis of the modulation of electron spin echo decay envelope. J. Chem. Phys. 1976 65:3379-3381

24. Narayana, PA. and Kevan, L. Effects of quadruple interaction on electron spin echo

modulation patterns in disordered systems. J. Magn. Reson. 1977 26:437-443 25. Narayana, PA., Schwartz, R.N., Bowman, M.K., Becker, D., and Kevan, L. Improved

lineshape model for matrix ENDOR. J. Chem. Phys. 1990-1996, 1977 67 26. Kimura, T., Fueki, K., Narayana, PA., and Kevan, L. A semicontinum model with a

structured first solvation shell for excess electrons in liquid and glassy alkanes. Can. J. Chem. 1977 55:1940-1951

27. Gogan, N.J., Chu, C.K., and Narayana, PA. ESR of organometallics: III Electronic effects

in the tricarbonyl chromium (benzoylcyclopentadienyl) manganese tricarbonyl anion and some substituted derivatives. J. Organometal Chem. 1978 144:125-133

28. Narayana, PA., Becker, D., and Kevan, L. Electron spin echo modulation studies of silver

atom solvation disolvation in ice matrices. J. Chem. Phys. 1978 68:652-654 29. Schlick, S., Narayana, PA., and Kevan, L. Matrix ENDOR studies of the proton

environment of the radical in natural and solvent refined coal. J. Am. Chem. Soc. 1978 100:3322-3326

43

30. Kevan, L., Narayana, PA., Toriyama, K., and Iwasaki, M. General matrix ENDOR lineshape model applied to the methyl radical in lithium acetate dihydrate using single crystal data. J. Chem. Phys. 1979 70:5006-5014

31. Agarwal, G.S. and Narayana, PA. Effects of probe field strength and the fluctuations of the

exciting laser on the asymmetry of Autler Townes doublet. Optics Communications 1979 30:364-368

32. Ichikawa, T., Kevan, L., and Narayana, PA. High power electron spin echo modulation

studies of silver atom solvation and desolvation in ice matrices. Geometrical models for silver cation and silver atom aqueous solvation shells. J. Phys. Chem. 1979 71:3792-3795

33. Ichikawa, T., Kevan, L., and Narayana, PA. Electron spin echo modulation studies of silver

atom solvation in methanol: Geometrical model for the methanol solvation shell. J. Phys. Chem. 1979 83:3379-3555

34. Aruna, B., Ramakrishna, Y.V.S., and Narayana, PA. Fourier transform of deuteron

modulation of electron spin echo envelope in D2O and CH3OD. Phys. Stat. Sol. 1981 (b)101:791-796

35. Ramakrishna, Y.V.S. and Narayana, PA. Fourier transform studies of Electron spin echo

modulation of hemoglobin azide. J. Chem. Phys. 1981 75:1123:1125 36. Aruna, B., Ramakrishna, Y.V.S., and Narayana, PA. Electron paramagnetic resonance

studies of Cu2+ in NH4Cl1-xBrx single crystals. Phys. Stat. Sol. 1981 105:347-351 37. Narayana, PA., Liu, A.S.W., and Kevan, L. Electron spin resonance and electron spin echo

studies of photoproduced tetramethylbenzadine cation radical in frozen micellar solution: Cation surroundings and selection of micellar structure in frozen solutions. J. Am. Chem. Soc. 1981 103:3603-3604

38. Kevan, L., Schlick, S., Narayana, PA., and Feng, D.F. Application of the semicontinuum

potential model to deduce localized electron trapping sites in single crystals of D-sorbitol. J. Chem. Phys. 1980-1983, 1981 75

39. Narayana, PA. and Kevan, L. Fourier transformation of electron spin echo modulation:

Application to the solvation shell geometry of 02. J. Magn. Reson. 1982 46:84-90 40. Narayana, PA., Li, A.S.W., and Kevan, L. A new method of detection of preferential

absorption of metal cations at anionic micellar surfaces in frozen aqueous solutions by electron spin echo spectrometry. J. Phys. Chem. 1982 86:3-5

41. Narayana, PA., Massoth, R.J., and Kevan, L. An active microwave delay line for reducing

the dead time in electron-spin echo spectrometry. Rev. Sci. Instrum. 1982 53:624-626 42. Narayana, PA., Suryanarayana, D., and Kevan, L. Electron spin echo studies of the

solvation structure of 02-in water. J. Am. Chem. Soc. 1982 104:3552-3555

44

43. Suryanarayana, D., Narayana, PA., and Kevan, L. Molecular cage effects on the motion and coordination of VO2+ in PVA gels: Electron spin echo and electron spin resonance studies. J. Phys. chem. 1982 86:4579-4584

44. Narayana, PA., Suryanarayana, D., and Kevan, L. Electron spin echo studies of the

solvation structure of O2 in methanol and ethanol. J. Phys. Chem. 1982 86:2729-2732 45. Suryanarayana, D., Narayana, PA., and Kevan, L. Effect of molecular cage size on the

motion and coordination of copper (2+) in cross linked poly (vinyl alcohol) and poly (ethylene oxide) gels: Electron spin echo and electron spin resonance studies: J. Am. Chem. Soc. 1983 22:474-478

46. Narayana, PA. and Ophir, J. A closed form method for measurement of attenuation of

nonlinearly dispersive media. Ultrasonic Imag. 1983 5:17-21 47. Narayana, PA. and Ophir, J. Spectral shifts of ultrasonic propagation: A study of

theoretical and experimental models. Ultrasonic Imag. 1983 5:22-29 48. Ophir, J. and Narayana, PA. Effect of half-wave length membranes on the axial resolution

of real-time ultrasonic scanners. J. Accoust. Soc. Am. 1983 74:687-690 49. Narayana, PA. and Kevan, L. Liquid phase spin echo studies: Direct determination of

transverse relaxation time in photo produced TMB cation. Photochem. and Photobiol. 1983 37:105-107

50. Narayana, PA. and Ophir, J. On the frequency dependence of attenuation in normal and

fatty livers. IEEE Sonics and Ultrasonics, 1983 SU30:379-383 51. Narayana, PA. and Ophir, J. On the validity of the linear approximation in the parametric

measurement of attenuation in tissues: Ultrasound attenuation in tissues. Ultrasound Med. Biol. 1983 9:357-561

52. Narayana, PA., Ophir, J., and Maklad, N.F. The attenuation of ultrasound in biological

fluids. J. Acoust. Soc. Am. 1984 76:1-4 53. Beall, P.T., Narayana, PA., Amtey, S.R., Spiga, L., Intra, E., Ridella, S., and Mela, G.S.

The systemic effect of cancers on human sera proton NMR relaxation times. Magn. Reson. Imag. 1984 2:83-87

54. Narayana, PA. and Ophir, J. The measurement of attenuation in nonlinearly attenuating

media by the zero crossing method. Ultrasound Med. Biol. 1984 10:715-718 55. Aruna, B., Ramakrishna, Y.V.S., and Narayana, PA. Linewidth variations in the EPR

spectra of Cu2+ in NH4Cl1-xBrx single crystals. J. Phys. Chem. Solids 1984 45:1111-1118 56. Jensen, D.J., Delayre, J.L., and Narayana, PA. Localized T1 measurements using volume

selective excitation. J. Magn. Reson. 1986 69:552-558

45

57. Narayana, PA., Delayre, J.L., and Misra, L.K. Invivo 31P NMR studies of avian dystrophic muscles. Magn. Reson. Med. 1986 3:549-553

58. Narayana, PA., Wolinsky, J.S., and Jensen, D.J. Magnetic resonance imaging of

experimental mumps meningoencephalitis in suckling hamsters. Magn. Reson. Med. 1987 4:597-601

59. Narayana, PA., Brey, W.W., Kulkarni, M.V., and Misra, L.K. Invivo proton spin lattice

relaxation times in normal and dystrophic muscles. Magn. Reson. Med. 1987 4:153-161 60. Jensen, D.J., Narayana, PA., and Delayre, J.L. Pulse sequence design for volume selective

excitation in magnetic resonance. Med. Phys. 1987 14:38-42 61. Jensen, D.J., Delayre, J.L., and Narayana, PA. An incremental phase shifter and frequency

modulator for magnetic resonance imaging and spectroscopy. IEEE Trans. Biomed. Eng. 1987 BME-34:310-313

62. Jensen, D.J., Brey, W.W., Delayre, J.L., and Narayana, PA. Reduction of pulsed gradient

settling time in the superconducting magnet of a magnetic resonance instrument. Med. Phys. 1987 14:859-862

63. Kulkarni, M.V., Williams, J.C., Yeakley, J.W., Andrews, J.L., McArdle, C.B., Narayana,

PA., Howell, R.R., and Jonas, A.J. Magnetic resonance imaging in the diagnosis of the cranio-cervical manifestations of the mucopolysaccharidoses. Magn. Reson. Imag. 1987 5:317-324

64. Ramakrishna, Y.V.S., Aruna, B., and Narayana, PA. Electron spin echo studies of

hemoglobin cyanide and nitroxide derivatives. Biochim. Biophys. Acta. 1987 916:48-53 65. Brey, W.W. and Narayana, PA. Correction for intensity falloff in surface coil magnetic

resonance imaging. Med. Phys. 1988 15:241-245 66. Narayana, PA., Jensen, D.J., and Jackson, E.F. Practical problems and solutions in spatially

resolved spectroscopy. J. Magn. Reson. 1988 79:11-20 67. Narayana, PA., Brey, W.W., Kulkarni, M.V., and Sievenpiper, C. Compensation for surface

coil sensitivity variation in magnetic resonance imaging. Magn. Reson. Imag.1988 6:271-274

68. Narayana, PA., Hazle, J.D., Jackson, E.F., Fotedar, L.K., and Kulkarni, M.V. Invivo 1H

spectroscopic studies of human gastrocnemius muscle at 1.5 T. Magn. Reson. Imag.1988 6:481-485

69. Kulkarni, M.V., Narayana, PA., McArdle, C.B., Yeakley, J.W., Campagna, N.F., and

Wherli, F.W. Cervical spine MR imaging using multislice gradient recalled acquisition (GRA) comparison with cardiac gaited spin echo. Magn. Reson. Imag. 1988 6:517-525

46

70. Jackson, E.F., Narayana, PA., and Kudrle, W.A. A comparison of spatially resolved spectroscopy and stimulated echo acquisition mode sequences for volume localized spectros-copy. J. Magn. Reson. 1988 80:23-38

71. Gutierrez, G., Pohil, R.J., Andry, J.M., Strong, R., and Narayana, PA. Bioenergetics of

rabbit skeletal muscle during hypoxemia and ischemia. J. Appl. Physiol. 1988 65:608-616 72. Kulkarni, M.V., Bondurant, F.J., Rose, S.L., and Narayana, PA. 1.5 tesla magnetic

resonance imaging of acute spinal trauma. Radiographics 1988 8:1059-1082 73. Narayana, PA., Jackson, E.F., Hazle, J.D., Fotedar, L.K., and Kulkarni, M.V. Invivo

localized proton spectroscopic studies of human gastrocnemius muscle. Magn. Reson. Med. 1988 8:151-159

74. Misra, L.K. and Narayana, PA. Invivo T1 characterization of genetically induced muscle

atrophy. Magn. Reson. Imag. 1989 7:277-282 75. Gutierrez, G., Pohil, R.J., and Narayana, PA. Skeletal muscle O2 construction and energy

metabolism during hypoxemia. J. Appl. Physiol. 1989 66:2117-2123 76. Narayana, PA., Slopis, J.M., Jackson, E.F., Hazle, J.D., Kulkarni, M.V., and Butler, I.J. In

vivo muscle proton magnetic resonance spectroscopic studies in mitochondrial cytopathy. Magn. Reson. Imag. 1989 7:133-139

77. Raval, B., Mehta, S., Narayana, PA., and Kulkarni, M.V. Feasibility of fast MR imaging of

the liver at 1.5 T. Magn. Reson. Imag. 1989 7:203-210 78. Narayana, PA., Fotedar, L.K., Jackson, E.F., Bohan, T.P., Butler, I.J., and Wolinsky, J.S.

Regional invivo proton magnetic resonance spectroscopy of brain. J. Magn. Reson. 1989 83:44-52

79. Hazle, J.D., Narayana, PA., and Kudrle, W.A. Invivo proton NMR studies of normal rat

liver. J. Magn. Reson. 1989 83:595-600 80. Jackson, E.F., Narayana, PA., and Flamig, D.P. One-dimensional spectroscopic imaging

with stimulated echoes: Phantom and human leg studies. Magn. Reson. Imag. 1990 8:153-159

81. Hazle, J.D., Narayana, PA., and Dunsford, H.A. Chronic carbon tetrachloride and

phospholipase-D hepatotoxicity in rat: Invivo 1H magnetic resonance, total lipid analysis, and histology. Magn. Reson. Med. 1990 15:211-228

82. Fenstermacher, M.J. and Narayana, PA. Serial proton magnetic resonance spectroscopy of

ischemic brain injury in humans. Invest. Radiol. 1990 25:1035-1039 83. Wolinsky, J.S., Narayana, PA., and Fenstermacher, M.J. Proton magnetic resonance

spectroscopy in Multiple Sclerosis. Neurology 1990 40:1764-1769

47

84. Fotedar, L.K., Slopis, J.M., Narayana, PA., Fenstermacher, M.J., Pivarnik, J.A., and Butler, I.J. Proton magnetic resonance of exercise induced water changes in gastrocnemius muscle. J. Appl. Physiol. 1990 69:1695-1701

85. Weirich, S.D., Cotler, H.B., Narayana, PA., Hazle, J.D., Jackson, E.F., Coupe, K.J.,

McDonald, C.L., Langford, L.A., and Harris, Jr., J.H. Histopathologic correlation of magnetic resonance image signal patterns in a spinal cord injury model. Spine 1990 15:630-638

86. Narayana, PA., Slopis, J.M., Jackson, E.F., Jankovic, J., and Butler, I.J. Proton magnetic

resonance spectroscopic studies of hypertrophied muscle: Effect of botulinum toxin treatment. Invest. Radiol. 1991 26:58-64

87. Wolinsky, J.S. and Narayana, PA. Proton magnetic resonance spectroscopy and Multiple

Sclerosis. Letter: The Lancet 1991 334:362 88. Hazle, J.D., Narayana, PA., and Dunsford, H.A. In vivo NMR, biochemical and histologic

evaluation of alcohol induced fatty liver in rat and a comparison with Ccl4 hepatoxicity. Magn. Reson. Med. 1991 19:124-135

89. Narayana, PA., Kudrle, W.A., Liu, S.-J., Charnov, J.H., Butler, B.D., and Harris, Jr., J.H.

Magnetic resonance imaging of hyperbaric oxygen treated rats with spinal cord injury: Preliminary studies. Magn. Reson. Imag. 1991 9:423-428

90. Narayana, PA., Johnston, D., and Flamig, D.P. Invivo proton magnetic resonance

spectroscopy studies of human brain. Magn. Reson. Imag. 1991 9:303-308 91. Kudrle, W.A., Narayana, PA., and Dunsford, H.A. Magnetic resonance imaging of burn

injury in rats. Magn. Reson. Imag. 1991 9:533-543 92. Narayana, PA., and Jackson E.F. Image-guided in vivo proton magnetic resonance

spectroscopy in human brain. Current Science, 1991 61:340-351 93. Narayana, PA., Wolinsky, J.S., Jackson, E.F., and McCarthy, M. Proton magnetic

resonance spectroscopy of gadolinium-DTPA enhanced multiple sclerosis plaques. J. Magn. Reson. Imag. 1992 2:263-270

94. Jackson, E.F., Narayana, PA., Wolinsky, J.S. and Doyle, T.J. Accuracy and reproducibility

in volumetric analysis of multiple sclerosis lesions. J. Comp. Asst. Tomog. 1993 17:200-205

95. Slopis, J.M., Jackson, E.F., Narayana, PA., Papsozomenos, S.Ch., and Butler, I.J. Proton

magnetic resonance imaging and spectroscopic studies of the pathogenesis and treatment of Juvenile Dermatomyositis. J. Child Neurol. 1993 8:242-249

96. Fitchard, E.E. and Narayana, PA. Two-dimensional registration of magnetic resonance

brain image. Med. Phys. 1994 21:1333-1337

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97. Phillips, J.R., Falconer, J.C., Botzer, S., and Narayana, PA. MRI scanner transport system. Magn. Reson. Med. 1994 32:133-136

98. Jackson, E.F., Doyle, T.J., Wolinsky, J.S., and Narayana, PA. Short echo-time 1H

spectroscopic imaging of normal human brain: Reproducibility studies. J. Magn. Reson. Imag. 1994 4:545-551

99. Jackson, E.F., Narayana, PA., and Falconer, J.C. The reproducibility of semi-nonparametric

feature map segmentation for determination of normal human intra-cranial volumes with MR image data. J. Magn. Reson. Imag. 1994 4:692-700

100. Falconer, J.C., Narayana, PA., Bhattacharjee, M.B., and Liu, S.J. Quantitative MRI of

Spinal Cord Injury in a Rat Model. Magn. Reson. Med. 1994 32:1-8 101. Doyle, T.J., Pathak, R., Wolinsky, J.S., and Narayana, PA. Automated proton spectroscopic

image processing. J. Magn. Reson. 1995 (B)106:58-63 102. Narayana, PA., and Borthakur, A. Effect of radio frequency inhomogeneity of the

reproducibility of intra-cranial volumes using MR image data. Magn. Reson. Med. 1995 33:396-400

103. Doyle, T.J., Bedell, B.J., and Narayana, PA. Relative concentrations of proton MR visible

neurochemicals in gray and white matter in human brain. Magn. Reson. Med. 1995 33:755-759

104. Falconer, J.C., Narayana, PA., Bhattacharjee, M., and Liu, S-J. Characterization of an

experimental spinal cord injury model using waveform and morphometric analysis. Spine, 1996 21(1):104-112

105. Falconer, J.C., Liu, S.-J., Abbe, R.A., and Narayana, PA. Time Dependence of N-Acetyl-

Aspartate, Lactate and Pyruvate Concentrations Following Spinal Cord Injury. J. of Neurochem., 1996 66(2):717-722

106. Bedell, B.J., Narayana, PA., and Johnston, D.A. Three-Dimensional image registration for

human brain. Magn. Reson. Med., 1996 35:384-390 107. Bedell, B.J., Narayana, PA. Automatic removal of extrameningeal tissues from MR images

of human brain. J. Magn. Reson. Imag. 1996 6:939-943 108. Bedell, B.J., Narayana, PA., and Wolinsky, J.S. A dual approach for minimizing false

lesions classifications on magnetic resonance images. Magn. Reson. Med. 1997 37:94-102 109. Falconer, J.C., Narayana, PA. Cerebrospinal fluid-suppressed high resolution diffusion

imaging of human brain. Magn. Reson. Med. 1997 37:119-123 110. Narayana, PA., Doyle, T.J., Lai, D., Wolinsky, J.S. Serial proton magnetic resonance

spectroscopic imaging, contrast enhanced magnetic resonance imaging and quantitative lesion volumetry in multiple sclerosis. Annals of Neurology. 1998 43:56-71

49

111. Bedell, B.J., Narayana, PA. Volumetric analysis of white matter, gray matter, and CSF using fractional volume analysis. Magn. Reson. Med. 1998 39:961-969

112. Bedell, B.J., Narayana, PA. Automatic segmentation of gadolinium-enhanced multiple

sclerosis. Magn. Reson. Med. 1998 39:935-940 113. Bedell, B.J., Narayana, PA. Implementation and evaluation of a new pulse sequence for

rapid acquisition of double inversion-recovery images for simultaneous suppression of white matter and CSF. J. Magn. Reson. Imag. 1998 8:544-547

114. Fenyes, D.A., Narayana, PA. Invivo echoplanar imaging of rat spinal cord. J. Magn. Reson.

Imaging. 1998 16:1249-1255 115. Zacharopoulos, N.G., Narayana, PA. Selective measurement of white matter and gray

matter diffusion trace values in normal human brain. Med. Phys. 1998 25(11):2237-2241

116. Narayana, PA., Abbe, R., Liu, Shie-Jie, Johnston, D. Does loss of gray- and white-matter contrast in injured spinal cord signify secondary injury? Invivo longitudinal MRI studies. Magn. Reson. Med. 1999 41(2):315-320

117. Narayana, PA., Fenyes, D.A., Zacharopoulos, N.G. Invivo relaxation times of gray matter

and white matter in spinal cord. Magn. Reson. Imaging. 1999 17(4):623-626. 118. Fenyes, D.A., Narayana, PA. Invivo diffusion characteristics of rat spinal cord. Magnetic Resonance Imaging 1999 17(5):717-722 119. Fenyes, D.A., Narayana, PA. In vivo diffusion tensor imaging of rat spinal cord with echo

planar imaging. Magn. Reson. Med. 1999 42(2):300-306 120. Bilgen, M., Abbe, R., Liu, Shi-J., Narayana, PA. Spatial and temporal evolution of

hemorrhage in the hyper-acute phase of experimental spinal cord injury: In vivo magnetic resonance imaging. Magn. Reson. Med. 2000 43:594-600

121. Wolinsky, J.S., Narayana, PA. Noseworthy, J.H., Lublin, F.D., Whitaker, J.N., Linde, A.,

Gjorstrup, P., Sullivan, H.C., and MRI Analysis Center of the University of Texas-Houston Health Science Center and the North American Linomide Investigators. Linomide in relapsing and secondary progressive MS. Neurology 2000 42:1734-1741

122. Bilgen, M., Abbe, R., Narayana, PA. Dynamic contrast enhanced magnetic resonance

imaging of experimental spinal cord injury: in vivo serial studies. Magn. Reson. Med. 2001 45:614-622

123. Wolinsky, J.S., Narayana, PA., Johnson, K.P., Copolymer 1 Multiple Sclerosis Study Group

and the MRI Analysis Center. United States Open-label glatiramer extension for trial for relapsing multiple sclerosis: MRI and clinical correlates. Multiple Sclerosis. 2001 7:33-41

124. Bilgen, M. and Narayana, PA. A pharmacokinetic model for quantitative evaluation of

spinal cord injury with dynamic contrast enhanced magnetic resonance imaging. Magn. Reson. Med. 2001 46:1099-1106

50

125. Narayana, PA., Sharma, R., Wolinsky, J.S. Gray matter abnormalities in multiple sclerosis:

Proton magnetic resonance spectroscopic imaging. Multiple Sclerosis. 2001 7:221:226 126. Brod SA, Lindsey JW, Vriesendorp FS, Ahn C, Henninger E, Narayana PA, Wolinsky JS.

Ingested IFN-a. Results of a pilot study in relapsing-remitting MS. Neurology. 2001 57:845-852

127. Bilgen M., Elshafiey I., Narayana PA. In vivo magnetic resonance microscopy of rat spinal

cord at 7T using implantable rf coils. Magn. Reson. Med. 2001 46:1250-1253 128. Bilgen M, Elshafiey I., Narayana, PA. Mohr diagram representation of anisotropic diffusion

tensor in MRI. Magn. Reson. Med. 2002 47:823-827 129. He, R., Narayana, PA. Automatic delineation of Gd enhancements on magnetic resonance

images in multiple sclerosis. Medical Physics. 2002 29(7):1536-1546 130. Elshafiey I, Bilgen M, He R, Narayana PA. In vivo bioexponential diffusion tensor imaging

of rat spinal cord at 7T. Magn. Reson. Imaging. 2002 20:243-247 131. He R., Narayana PA. Global optimization of mutual information: Application to three-

dimensional restrospective registration of magnetic resonance images. Comp. Med. Imag. Graph. 2002 26:277-292

132. Bilgen M., Dogan B., Narayana, PA. In vivo assessment of blood-spinal cord barrier

permeability: Serial dynamic contrast enhanced MRI of spinal cord injury. Magn. Reson. Imag. 2002 20:337-341

133. Hasan, K.M., Narayana, PA. Computation of the Mean Diffusivity, Relative Anisotropy and

Fractional Anisotropy Maps Without Tensor Decoding and Diagonalization: Theoretical Analysis and Experimental Validation. Magn. Reson. Med. 2003 50(3):589-598

134. Bilgen, M. and Narayana, PA. Mohr Diagram Interpretation of Anisotropic Diffusion

indices in MRI. Communicated Magn. Reson. Imag. 2003 21(567-572) 135. Lai, D., Sharma, R., Wolinsky, J.S., and Narayana, PA. A Comparative Study of

Correlation Coefficients in Spatially MRSI-observed Neurochemicals from Multiple Sclerosis Patients. J. Applied Statistics 2003; 30:1221–1229

136. Hasan, K.M., Alexander, A.L., Narayana, PA. Does Fractional Anisotropy Have Better Noise Immunity Characteristics Than Relative Anisotropy in Diffuion Tensor MRI? An Analytical Approach, Magnetic Resonance in Medicine 2004 51:413–417

137. Moeller, F.G., Steinberg, J.L., Dougherty, D.M., Narayana, PA., Kramer, L., Renshaw, P.

Functional MRI study of working memory in MDMA users. Psychopharmacology 2004 177:185-94

138. Narayana, PA., Jerry S Wolinsky, Sajja B Rao, Renjie He, Meghana Mehta and he

PROMiSe Trial MRSI Group. Multicentre proton magnetic resonance spectroscopy imaging of primary progressive multiple sclerosis. Multiple Sclerosis 2004 10:S73-S78

51

139. Narayana, PA., Grill, R.J., Chacko, T., Vang, R. Endogenous Recovery of Injured Spinal

Cord: Longitudinal In Vivo Magnetic Resonance Imaging, J Neurosci Res. 2004;78;749-59 140. Moeller, F.G., Hasan, K.M.; Steinberg, J.L., Kramer, L.A.; Dougherty, D.M.1; Santos, R.M.,

Valdes, I., Swann, A.C., Barratt, E.S., Narayana, PA., Reduced Anterior Corpus Callosum White Matter Integrity is related to Increased Impulsivity and Reduced Discriminability in Cocaine Dependent Subjects: Diffusion Tensor Imaging Neuropsychopharmacology 2005 30: 610-617

141. Saaussan, M., Hasan, K.M., Narayana, PA., Diffusion Tensor Imaging of In vivo and

Excised Rat Spinal Cord at 7T With an Icosahedral Encoding Scheme. Magn Reson Med 2005 53: 118-125

142. Gupta, R.K., Saksena, S., Agarwal, A., Hasan, K.M., Husain, M., Gupta V, Narayana PA.

Diffusion tensor imaging in late posttraumatic epilepsy. Epilepsia. 2005;46:1465-1471 143. Hasan, K.M., Narayana, PA. DTI parameter optimization at 3.0 T: potential application

in entire normal human brain mapping and multiple sclerosis research. Medicamundi 2005 49:31-44

144. Hou, P., Hasan, K.M., Sitton, C.W., Wolinsky, J.S., Narayana, PA. Phase Sensitive T1

inversion recovery imaging: a time-efficient interleaved technique for improved tissue contrast in Neuroimaging. AJNR 2005;26:1432-8

145. Sriram, S., Yao, S.Y., Stratton, C., Moses, H., Narayana, PA., Wolinsky, J.S. Pilot study to

examine the effect of antibiotic therapy on MRI outcomes in RRMS. J Neurol Sci. 2005 234:87-91

146. Gupta, R.K., Hasan, K.M., Trivedi, R., Pradhan, M., Das, V., Parikh, N.A., Narayana, PA.

Diffusion tensor imaging of the developing human cerebrum. J Neurosci Res. 2005 81:172-178

147. Hasan, K.M., Gupta, R.K., Santos, R.M., Wolinsky, J.S., Narayana, PA. Diffusion tensor

fractional anisotropy of the normal-appearing seven segments of the corpus callosum in healthy adults and relapsing-remitting multiple sclerosis patients. J Magn Reson Imaging 2005 21:735-743

148. Gupta, R.K., Hasan, K.M., Mishra, A.M., Jha, D., Husain, M., Prasad, K.N., Narayana, PA.

High fractional anisotropy in brain abscesses versus other cystic intracranial lesions. AJNR 2005 26:1107-1114

149. R. He*, B. R. Sajja, and Narayana, PA. Implementation of High Dimensional Feature Map

for Segmentation of MR Images Annal Biomed Eng. 2005 33:1439-48. PMC1409759

150. Narayana, PA. Magnetic Resonance Spectroscopy in the Monitoring of Multiple Sclerosis. J Neuroimaging. 2005;15:46S-57S. PMC1351238

151. Sajja BR, Datta S, He R, Mehta M, Gupta RS, Wolinsky JS, Narayana PA. Unified

52

Approach for Multiple Sclerosis Lesion Segmentation on Brain MRI Annals Biomed Eng. 2006 34:142-151 . PMC1463248

152. Datta, S, Sajja, B.R, He, R., Wolinksy, J., Gupta, R.K., Narayana, PA. Segmentation and

quantification of black holes in multiple sclerosis. Neuroimage. 2006 29:467-474. PMC1808226

153. Kale, R.A., Gupta, R.K., Saraswat, V.A., Hasan, K.M., Trivedi, R., Mishra, A.M.,

Ranjan, P., Pandey, C.M, Narayana, PA. Demonstration of interstitial cerebral edema with diffusion tensor MR imaging in type C hepatic encephalopathy. Hepatology. 2006 ; 43:698-706

154. Deo, A.A., Grill, R.J., Hasan, K.M., Narayana, PA. Invivo serial diffusion tensor

imaging of experimental spinal cord injury. J Neurosci Res. 2006 83:801-810 155. Gupta, R.K., Saksena, S., Hasan, K.M., Agarwal, A., Haris, M., Pandey, C.M., Narayana,

PA. Focal Wallerian degeneration of the corpus callosum in large middle cerebral artery stroke: Serial diffusion tensor imaging. J. Magn Reson Imaging 2006 24:549-555

156. Hasan, K.M. and Narayana, PA. Retrospective Measurement of the Diffusion Tensor

Eigenvalues from Diffusion Anisotropy and Mean Diffusivity in DTI . Magn Reson Med 2006 56:130-137

157. Valdes, I.H., Steinberg, J.L.; Narayana, PA; Kramer, L.A.; Dougherty, D.M.; Swann, A.C.;

Barratt, E.S.; Moeller, F.G. Impulsivity and BOLD fMRI Activation in MDMA Users and Healthy Control Subjects. Psychiatry Research: Neuroimaging, 2006 147:239-242

158. R. Trivedi, R. K. Gupta, K. M. Hasan, P. Hou, K. N. Prasad, Narayana, PA. Diffusion

tensor imaging in polymicrogyria: a report of three cases. Neuroradiology. 2006 48:422-427 159. Haris, M., Gupta, R.K., Husain, N., Hasan, K.M., Husain, M., Narayana, PA.. Measurement

of DTI Metrics in Hemorrhagic Brain Lesions: Possible Implication in MRI Interpretation. J Magn Reson Imaging 2006; 24:1259-1268

160. Ramu, J., Bockhorst, K.H., Mogatadakala, K.V., Narayana, PA. Functional Magnetic

Resonance Imaging in Rodents: Methodology and Application to Spinal Cord Injury. J Neurosci Res 2006 84:1235-1244

161. Bhat, H., Sajja, B.R., and Narayana, PA. Fast Quantification of Proton Magnetic Resonance

Spectroscopic Imaging with Artificial Neural Networks. J Magn Reson 2006 183:110–122. PMC1752214

162. Deng, X., Ramu, J., and Narayana, PA. Spinal Cord Atrophy in Injured Rodents: High

Resolution MRI. Magn Reson Med. 2007;57:620-624 163. Ramu, J., Bockhorst, K.H., Grill, R.J., Narayana, PA. Cortical Reorganization in NT3

Treated Experimental Spinal Cord Injury: Functional Magnetic Resonance Imaging Studies Experimental Neurology 2007; 204:58–65

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164. Haris, M., Gupta, R.K., Husain, N., Hasan, K.M., Husain, M., Narayana, PA. Measurement of DTI Metrics in Hemorrhagic Brain Lesions: Possible Implication in MRI Interpretation. J Magn Reson Imaging. 2006;24:1259-1268.

165. Trivedi, R., Gupta, R.K., Agarawal, A., Hasan, K.M., Gupta, A., Prasad, K.N., Bayu, G., Rathore, D., Rathore, R.K., Narayana, P.A. Assessment of White Matter Damage in Subacute Sclerosing Panencephalitis Using Quantitative Diffusion Tensor MR Imaging. AJNR Am J Neuroradiol. 2006 27:1712-1716

166. Moeller, F.G., Hasan, K.M., Steinberg, J.L., Kramer, L.A., Valdes, I., Lai, L.Y., Swann, A.C., Narayana., PA. Diffusion tensor imaging eigenvalues: preliminary evidence for altered myelin in cocaine dependence. Psychiatry Res. 2007 154:253-258

167. Datta, S., Sajja, B.R., He, R., Gupta, R.K., Wolinsky, J.S., and Narayana, PA. Segmentation of Gadolinium Enhanced Lesions on MRI in Multiple Sclerosis J Magn Reson Imaging 2007 25:932-937

168. Wolinsky, J.S., Narayana, PA., O’Connor, P., Coyle, P.K., Ford, C., Johnson, K., Miller, A., Pardo, L., Kadosh, S., Ladkani, D. The PROMiSe Study Group. Glatiramer Acetate in Primary Progressive Multiple Sclerosis: Results of a Multinational, Multicenter, Double-Blind, Placebo-Controlled Trial. Annal Neurol 2007; 61:14-24

169. Malik, G.K., Trivedi, R., Gupta, R.K., Hasan, K.M., Hasan, A., Gupta, A., Pandey, C.M., Narayana, PA. Serial Quantitative Diffusion Tensor MRI of the Term Neonates with Hypoxic-Ischemic Encephlopathy (HIE) Neuropediatrics 2006 37:337-343

170. Ghaghada, K.B., Bockhorst, K.H., Mukundan, S. Jr, Annapragada, A.V., and Narayana, PA. High Resolution Vascular Imaging of the Rat Spine using Liposomal Blood Pool MR Agent. AJNR 2007 28:48-53. PMC1773015

171. Sajja, B.R., Narayana, PA., Wolinsky, J.S., Ahn, C.W. and the PROMiSe Trial MRSI Group. Longitudinal Magnetic Resonance Spectroscopic Imaging of Primary Progressive Multiple Sclerosis Patients Treated with Glatiramer Acetate: Multi-Center Study. Mult Scler. 2008;14:73-80

172. Poonawalla, A.H., Hou, P., Nelson, F.J., Wolinsky, J.S., Narayana, PA. Magnetic resonance imaging of cervical spinal cord lesions in multiple sclerosis using T1-weighted inversion recovery with phase-sensitive reconstruction. Radiology 2008;246:258-264

173. Moeller, .F.G., Steinberg, J.L., Hasan, K.M.., Lane, S.D., Kramer, L.A., Buzby, M., Swann, A.C., Narayana, PA. Diffusion Tensor Imaging in MDMA Users and Controls: Association with Decision Making. American Journal of Drug and Alcohol Abuse. 2007 33:777-789

174. Gupta, R.K., Nath, K., Prasad, A., Prasad, K.N., Husain, M., Rathore, R.K.S., Husain, N., Srivastava, C.,3 Khetan, P., Trivedi, R., Narayana, PA. In vivo Demonstration of Neuroinflammatory Molecules Expression in Brain Abscess with Diffusion Tensor Imaging. AJNR Am J Neuroradiol. 2008;29:326-332.

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175. Trivedi, R., Malik, G.K., Gupta, R.K., Gupta, A., Nath, K., Prasad, K.N., Purwar, A., Rathore, D., Rathore, R.K., Narayana, P.A. Increased anisotropy in neonatal meningitis: an indicator of meningeal inflammation. Neuroradiology. 2007 49:767-775

176. Nelson, F., Poonawalla, A.H., Hou, P., Huang, F., Wolinsky, J.S., Narayana, PA. Improved identification of intracortical lesions in multiple sclerosis with phase-sensitive inversion recovery in combination with fast double inversion recovery MR imaging. AJNR Am J Neuroradiol. 2007; 9:1645-169

177. Hasan, K.M., Halphen, C., Boska, M.D., Narayana, PA. Diffusion Tensor Metrics, T2 Relaxation and Volumetry of the Naturally Aging Human Caudate Nuclei in Healthy Young and Middle-Aged Adults: Possible Implications to the Neurobiology of Human Brain Aging and Disease. Magnetic Resonance in Medicine 2008; 59:7–13

178. Herrera, J., Chacko, T., Narayana, PA. Histological correlation of diffusion tensor imaging in experimental spinal cord injury. J Neurosci Res 2008;86:443-447

179. Bockhorst, K.H., Narayana, PA., Liu, R., Ahobila, V.P., Ramu, J., Maged, K., Wosik, J, Bockhorst, T., Hahn, K., Hasan, K.M., Perez-Polo, J.R. Early Postnatal Development of Rat Brain:In vivo Diffusion Tensor Imaging. J Neurosci Res 2008;86:1520-1528

180. Kumar, M., Gupta, R.K., Nath, K., Rathore, R.K., Bayu, G., Trivedi, R., Husain, M., Prasad, K.N., Tripathi, R.P., Narayana, PA. Can we differentiate true white matter fibers from pseudofibers inside a brain abscess cavity using geometrical diffusion tensor imaging metrics? NMR Biomed. 2008;2:581-588.

181. Poonawalla AH, Hasan KM, Gupta MD RK, Ahn CW, Nelson F, Wolinsky JS, Narayana

PA. Diffusion Tensor Imaging of Cortical Lesions in Multiple Sclerosis. Radiology 2008 246:880-6

182. Hasan KM, Ewing-Cobbs L, Kramer LA, Fletcher JM, Narayana PA. Diffusion Tensor Quantification of the Macro and Microstructure of the Human Midsagittal Corpus Callosum across the Lifespan. NMR in Biomedicine NMR Biomed. 2008;2:1094-1101. PMC3046022

183. Ramu J, Herrera J, Grill R, Bockhorst T, Narayana P. Brain Fiber Tract Plasticity in Experimental Spinal Cord Injury: Diffusion Tensor Imaging. Exp Neurol. 2008;212:100-107. PMC2453245

184. He R, Sajja BR, Datta S, Narayana PA. Volume and shape in feature space on adaptive FCM in MRI segmentation. Ann Biomed Eng. 2008;36:1580-1593. PMC2453245

185. He R, Datta S, Sajja BR, Narayana PA. Generalized fuzzy clustering for segmentation of multi-spectral magnetic resonance images.Comput Med Imaging Graph. 2008 l;32:353-366. PMC2483677

186. Nelson F, Poonawalla A, Hou P, Wolinsky J, Narayana P. 3D MPRAGE improves classification of cortical lesions in multiple sclerosis. Mult Scler. 2008;14:1214-9. PMC2650249

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187. Guleria S, Gupta RK, Saksena S, Chandra A, Srivastava RN, Husain M, Rathore R,

Narayana PA. Retrograde Wallerian degeneration of cranial corticospinal tracts in cervical spinal cord injury patients using diffusion tensor imaging. J Neurosci Res. 2008;86:2271-2280. PMID:18335542

188. Cohen, DM; Patel, CB; Ahobila-Vajjula, P; Sundberg, LM; Chacko, T; Liu, S-J; Narayana PA. Blood-Spinal Cord Barrier Permeability in Experimental Spinal Cord Injury: Dynamic Contrast-Enhanced Magnetic Resonance Imaging. NMR Biomed. 2009;22:332-341. PMC2741317

189. Gill, MB; Bockhorst, K; Narayana, P; Perez-Polo, JR. Bax shuttling after neonatal hypoxia-ischemia: hyperoxia effects. J Neurosci Res. 2008;86:3584-604 PMC2585158

190. Haris, M; Kumar, S; Raj, MK; Das, KJ; Sapru, S; Behari ,S; Rathore, RK; Narayana, PA, Gupta RK. Serial diffusion tensor imaging to characterize radiation-induced changes in normal-appearing white matter folling radiotherapy in patients with adult low-grade gliomas. Radiat Med. 2008;26:140-50

191. Trivedi, R; Gupta, RK; Shah, V; Tripathi, M; Rathore, RK; Kumar, M; Pandey, CM; Narayana, PA. Treatment-induced plasticity in cerebral palsy: a diffusion tensor imaging study. Pediatr Neurol. 2008;39:341-349.

192. Mogatadakala, VK; Bankson, JA; Narayana, PA. Three Element Phased Array Coil for Imaging of Rat Spinal Cord at 7T . Magn Reson Med. 2008;60:1498-1505. PMC2597341

193. Hasan, KM; Halphen, C; Kamali, A; Nelson, FM; Wolinsky, JS; Narayana, PA Caudate Nuclei Volume, Diffusion Tensor Metrics, and T2 Relaxation in Healthy Adults and Relapsing- Remitting Multiple Sclerosis Patients: Implications for Understanding Gray Matter Degeneration. J Magn Reson Imaging. 2009; 29:70–77. PMC2731422

194. Narayana, PA, Ahobila-Vajjula, P; Ramu, J; Herrera, J; Steinberg, JL; Moeller, FG. Diffusion tensor imaging of cocaine treated rodents. Psych Res Neuroimaging. 2009; 171:242–251. PMC2677684

195. Tao, G; Datta, S; He, R; Nelson, F; Wolinsky, JS; Narayana, PA. Deep Gray Matter Atrophy in Multiple Sclerosis: A Tensor Based Morphometry. J Neurol Sci. 2009;282:39-46. PMC2744867

196. Datta, S; Tao, G; He, R; Wolinsky, JS; Narayana, PA. Improved Cerebellar Tissue Classification on Magnetic Resonance Images of Brain. J Magn Reson Imaging. 2009;29:1035-1042. PMC2678241

197. Tao, G; He, R; Datta, S; Narayana, PA. Symmetric Inverse Consistent Nonlinear Registration Driven by Mutual Information Comput Methods Programs Biomed. 2009; 9 5:105–115. PMC2744864

198. Sajja, BR; Wolinsky, JS; Narayana, PA. Proton Magnetic resonance spectroscopy in multiple sclerosis Neuroimaging Clin N Am. 2009 Feb;19(1):45-58. PMC2615006

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199. Herrera, J; Nesic-Taylor, O; Narayana, PA Reduced Vascular Endothelial Growth

Factor Expression In Contusive Spinal Cord Injury. J Neurotrauma. 2009 26:995–1003. PMC2848947

200. Patel, CB; Cohen, DM; Ahobila-Vajjula, P; Sundberg, LM; Chacko, T; Narayana, PA. Effect of VEGF Treatment on the Blood-Spinal Cord Barrier Permeability in Experimental Spinal Cord Injury: Dynamic Contrast-Enhanced Magnetic Resonance Imaging. J Neurotrauma. 2009 26:1005–1016. PMC2857512

201. Mogatadakala, KV; Narayana, PA. In-vivo Diffusion Tensor Imaging of Thoracic and cervical Rat Spinal Cord at 7T. Magn Reson Imaging 2009;27:1236-41. PMC2763029

202. Trivedi, R; Gupta, RK; Husain, N; Rathore, RK; Saksena, S; Srivastava, S; Malik, GK; Das, V; Pradhan, M; Sarma, MK; Pandey, CM; Narayana, PA. Region-specific maturation of cerebral cortex in human fetal brain: diffusion tensor imaging and histology. Neuroradiology. 2009;51(9):567-76 PMID:19421746

203. Moeller, FG; Steinberg, JL; Schmitz, JL; Ma, L; Liu, S; Kjome, KL; Rathnayaka, N; Kramer, LA; Narayana, PA Working memory fMRI activation in cocaine dependent subjects: association with treatment response. Psychiatry Research Neuroimaging 2010 30;181:174-182. PMID:20153142

204. Ma, L; Hasan, KM; Steinberg, JL; Narayana, PA, Lane SD, Zuniga EA, Kramer LA, Moeller FG. Diffusion tensor imaging in cocaine dependence: regional effects of cocaine on corpus callosum and effect of cocaine administration route. Drug Alcohol Depend. 2009;104:262-267. PMC2728358

205. Bockhorst, KH; Narayana, PA, Dulin, J; Liu, R; Rea, HC; Hahn, K; Wosik, J; Perez-Polo,JR. Normobaric hyperoximia increases hypoxia-induced cerebral injury: DTI study in rats. J Neurosci Res. 2010;88:1146-56. PMID:19885827

206. Qian, J; Herrera, JJ; Narayana, PA. Neuronal and Axonal Degeneration in Experimental Spinal Cord Injury: In vivo Proton Magnetic Resonance Spectroscopy and Histology. J Neurotrauma. 2010;27:599-610. PMC2867589

207. Hasan, KM; Narayana, PA. Magnetic resonance imaging-based quantitative iron mapping at 7-Tesla remains to be elusive in multiple sclerosis. Ann Neurol. 2009; 66:867. PMID20035512

208. Esparza-Coss, E; Wosik, J; Narayana, PA. Perfusion in Rat Brain at 7 T with Arterial Spin Labeling Using FAIR-TrueFISP and QUIPSS Magnetic Resonance Imaging. Magn Magn Reson Imaging. 2010;28:607-612. PMC2860051

209. Nesic, O; Guest, JD; Zivadinovic, D; Narayana, PA; Herrera, JJ; Grill, RJ; Mokkapati, VU; Gelman, BB; Lee, J. Aquaporins in Spinal Cord Injury: The Janus Face of Aquaporin 4. Neuroscience. 2010;168:1019-1035. PMC2885549

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210. Narayana, PA, Datta, S; Tao, G; Steinberg, J; Moeller, FG. Effect of Cocaine on Structural Changes in Brain: MRI Volumetry using Tensor-Based Morphometry. Drug Alcohol Depend. 2010 May 28. Drug and Alcohol Dependence 2010;111;191–199. PMC2945448

211. Nesic-Taylor, O; Sundberg, L; Herrera, J; Narayana, PA. VEGF and Spinal Cord Injury Pain. J Neurotrauma. 2010; 27:1793-1803. PMC2953928

212. Lane, SD; Steinberg, JL; Ma, L; Hasan, KM; Kramer, LA; Zuniga, EA; Narayana, PA, Moeller FG. Diffusion tensor imaging and decision making in cocaine dependence. PLoS One. 2010;16;5:e11591. PMC2905416

213. Poonawalla AH, Datta S, Juneja V, Nelson F, Wolinsky JS, Cutter G, Narayana PA. Composite MRI scores improve correlation with EDSS in multiple sclerosis. Mult Scler. 2010;16:1117-1125. PMC2935291

214. Sundberg, LM; Herrera, JJ; Narayana, PA. In Vivo Longitudinal MRI and Behavioral Studies in Experimental Spinal Cord Injury. J Neurotrauma. 2010;27:1753-1767. PMC2992395

215. Herrera, JJ; Sundberg, LM; Zentilin, L; Giacca, M; Narayana, PA. Sustained expression of vascular endothelial growth factor and angiopoietin-1 improves blood spinal cord barrier integrity and functional recovery after spinal cord injury. J Neurotrauma. 2010;27:2067-2076. PMC2978057

216. Yu, X; Zhang, Y; Lasky, RE; Datta, S; Parikh, NA; Narayana, PA. Comprehensive Brain MRI Segmentation in High Risk Preterm Newborns. PLoS One. 2010:5: e13874. PMC2975631

217. Hui C, Zhou Y, Narayana PA. Fast algorithm for calculation of inhomogeneity gradient in magnetic resonance imaging data. J Magn Reson Imaging 2010;32:1197-1208. PMC2975423

218. Datta S, Narayana PA Automated Brain Extraction from T2-weighted Magnetic

Resonance Images. J Magn Reson 2011;339:822-829 PMC3076604

219. Sundberg LM, Herrera JJ, Narayana PA. Effect of Vascular Endothelial Growth Factor Treatment in Experimental Traumatic Spinal Cord Injury: In Vivo Longitudinal Assessment J Neurotrauma 2011;28(4):565-578. PMC3070144

220. Ma L, Steinberg JL, Hasan KM, Narayana PA, Kramer LM, and Moeller FG. Working memory load modulation of parieto-frontal and parieto-parietal connections, evidence from dynamic causal modeling. Human Brain Mapping. 2012;114:564-571 PMC3179779

221. Nelson F, Datta S, Garcia N, L Rozario NL, Perez F, Cutter G, Narayana PA, Wolinsky JS Intracortical Lesions by 3T Magnetic Resonance Imaging and Correlation with Cognitive Impairment in Multiple Sclerosis. Mult Sclerosis J 2011;17:1122-1129 PMC3151473 (NIMH 285080)

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222. Pal D, Gupta RK, Agarwal S, Yadav A, Ojha BK, Awasthi A, Rathore RK, Pandey CM, Narayana PA Diffusion tensor tractography indices in patients with frontal lobe injury and its correlation with neuropsychological tests. Clin Neurol Neurosurg. 2012;114:564-571

223. Gupta RK, Awasthi R, Rathore RKS, Verma A, Sahoo P, Paliwal VK, Prasad KN, Pandey CM, and Narayana PA. Understanding Epileptogenesis in Calcified Neurocysticercosis with Perfusion MRI. Neurology 2012;78:618-625

224. Colorado R, Shukla K, Yuxiang Z, Wolinsky JS, Narayana PA. Multi-task functional MRI in multiple sclerosis patients without clinical disability. NeuroImage. 2012;59:573-681. PMC3195884

225. Kalamangalam GP, Nelson JA, Ellmore TM, Narayana PA. Oxygen Enhanced MRI: A Novel Imaging Modality Applied To Temporal Lobe Epilepsy. Epilepsy Res. 2012;98:50-61 PMID21917423

226. Hasan KM, Walimuni IS, Humaira A, Frye RE, Ewing-Cobbs L, Wolinsky JS, Narayana PA. Multimodal Quantitative Magnetic Resonance Imaging of Thalamic Development and Aging across the Human Lifespan: Implications to Neurodegeneration in Multiple Sclerosis. J Neurosci 2011;31:16826-16832 PMC3230860

227. Hasan KM, Walimuni IS, Humaira A, Datta S, Wolinsky JS, Narayana PA. Human Brain Atlas-based Multimodal MRI Analysis of Volumetry, Diffusimetry, Relaxometry and Lesion Distribution in Multiple Sclerosis Patients and Healthy Adult Controls: Implications for understanding the Pathogenesis of Multiple Sclerosis and Consolidation of Quantitative MRI Results in MS. Journal of the Neurological Sciences. J Neurol Sci. 2012;313:99-109. NIHMS326323

228. Hasan KM, Walimuni IS, Humaira A, Wolinsky JS, Narayana PA. Multi-modal Quantitative MRI Investigation of Brain Tissue Neurodegeneration in Multiple Sclerosis. Journal of Magnetic Resonance Imaging 2012; 35:1300-1311 PMID2241681

229. Hasan KM, Molfese DL, Walimuni IS, Stuebing KK, Papanicolaou AC, Narayana PA, Fletcher JM. Diffusion tensor quantification and cognitive correlates of the macrostructure and microstructure of the corpus callosum in typically developing and dyslexic children. NMR Biomed. 2012;25:1263-1270 PMID22411286

230. Letter to the Editor: Brain iron mapping using MRI relaxation rate or R(2) * revisited. Hasan KM, Walimuni IS, Narayana PA. Hum Brain Mapp. 2012;33:2003-2004 Aug 5. doi: 10.1002/hbm.21328. PMID21823205

231. Hasan KM, Walimuni IS, Kramer LA, Narayana PA Human brain iron mapping using atlas-based T2 relaxometry. Magn Reson Med. 2012;67:731-739.

232. Moeller F, Steinberg JL, Lane SD, Kjome KL, Ma L, Ferre S, Schmitz J, Green CE, Bandak SI, Renshaw PF, Kramer LA and Narayana PA Increased orbitofrontal brain activation after administration of a selective adenosine A2A antagonist in cocaine dependent subjects. Front. Psychiatry 2012;3:44.

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233. Zhou Y, Kumaravel M, Patel VS, Sheikh KA, MD, Narayana PA. Diffusion Tensor

Imaging of Forearm Nerves in Humans. J. Magn Reson Imaging 2012;36:920-927 PMID22689475

234. Barreto AD, Brod SA Bui T-T, Jemelka J, Kramer LA , Ton K, Cohen A , Lindsey JW, Nelson F , Narayana PA, Wolinsky JS. Chronic Cerebrospinal Venous Insufficiency: Case-Control Neurosonography Results. Annals Neurol Ann Neurol. 2013;73:721-728 PMID23418024

235. Narayana PA, Govindarajan KA, Goel P, Datta S, Lincoln J, Cofield SC, Cutter GR, Lublin FD, Wolinsky JS, the CombiRx Investigators Group. Regional Cortical Thickness in Relapsing Remitting Multiple Sclerosis: A Multi-Center Study. NeuroImage: Clinical 2013;2:120–131

236. Datta S, Narayana PA. A Comprehensive Approach to the Segmentation of

Multichannel Three-dimensional MR Brain Images in Multiple Sclerosis. NeuroImage: Clinical 2013;2:184–196.

237. Wolinsky JS, Narayana PA, Nelson F, Datta S, O’Connor P3, Confavreux C, Comi G, Kappos L, Olsson TP, Truffinet P, Wang L, Miller A and Freedman MS for the Teriflunomide Multiple Sclerosis Oral (TEMSO) Trial Group. Magnetic resonance imaging outcomes from a Phase III trial of teriflunomide. Mult Sclerosis J Mult Scler. 2013 2013;19:1310-1319PMID23447359

238. Lublin FD, Cofield SS, Cutter GR, Conwit R, MD, Narayana PA, PhD, Nelson F, Salter AR, Gustafson T, Wolinsky JS,. Randomized Study Combining Interferon and Glatiramer Acetate in Multiple Sclerosis Annals Neurol Ann Neurol. 2013;73:327-340

239. Tefera GB, Zhou Y, Juneja V, Narayana PA Evaluation of Fiber Tracking from Subsampled q-Space Data in Diffusion Spectrum Imaging. Magn Reson Imaging 2013;31:820–826 PMID23602724

240. Hui C, Esparza-Coss E, Narayana PA Improved 3D Look-Locker Acquisition Scheme and Angle Map Filtering Procedure for T1 Estimation. NMR in Biomed 2013;26:1420-1430

241. Zhou Y, Narayana PA, Kumaravel M, Athar P, Patel VS Sheikh KA. High Resolution

Diffusion Tensor Imaging of Human Nerves in Forearm. J Magn Reson Imaging. 2014;39:1374–1383) PMID23784967

242. Brod S, Kramer L, Cohen A, Barreto A, Bui. T-T, Jemelka J, Ton, K, Lindsy J, Nelson F, Narayana PA, Wolinsky JS. Chronic cerebrospinal venous insufficiency: Masked multimodal imaging assessment. Multiple Sclerosis J 2013 PMID23828872

243. Narayana PA, Zhou Y, Hasan KM, Datta S, Sun X, Wolinsky JS. Hypoperfusion and T1-hypointense Lesions in White Matter in Multiple Sclerosis. Multiple Sclerosis Journal 2014 Mar;20(3):365-73 PMID23836878

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244. Pogribna U, Yu X, Burson K, Zhou Y, Lasky RE, Narayana PA, Parikh NA. Perinatal Clinical Antecedents of White Matter Microstructural Abnormalities on Diffusion Tensor Imaging in Extremely Preterm Infants. PLoSOne 2013;8:e72974 PMC3756943

245. Pogribna U, Yu X, Burson K, Zhou Y, Lasky RE, Narayana PA, Parikh NA. Role of Diffusion Tensor Imaging as an Independent Predictor of Cognitive and Language Development in Extremely Low Birth Weight Infants (American Journal of Neuroradiology) 2014;35:790-796 PMC3960368

246. Hasan KM, Wilde EA, Miller ER, Patel VK, Staewen TD, Frisby ML, Garza HM, McCarthy JJ, Hunter JV, Levin HS, Robertson CS, Narayana PA. Serial Atlas-based DTI Study of Uncomplicated Mild Traumatic Brain Injury in Adults. J Neurotrauma 2014;31:466-475.

247. Gupta PK, Gupta RK, Garg RK, Roy B, Pandey CM, Narayana PA. DTI correlates of cognition in conventional MRI normal appearing brain in patients with clinical features of SACD and biochemically proven Vitamin B12 deficiency. Am J Neurorad (AJNR) 2014;35:872-877.

248. Nelson F, Poonawalla A, Datta S, Wolinsky JS, Narayana PA. Is 3D MPRAGE better than the combination DIR/PSIR for cortical lesion detection at 3 T MRI? Mult Scler Relat Disord. 2014;32:253-257

249. Kramer LA, Cohen AM, Hasan KM, Heimbigner JH, Barreto AD, Brod SA, Narayana PA, Wolinsky JS Contrast Enhanced MR Venography With Gadofosveset Trisodium: Evaluation of the Intracranial and Extracranial Venous System. J Magn Reson Imaging 2014;40: 630–640.

250. Narayana PA, Herrera J, Bockhorst K, Esparza-Coss E; Xia Y, Steinberg J; Moeller FG. Chronic Cocaine Administration Causes Extensive White Matter Damage in Brain: Diffusion Tensor Imaging and Immunohistochemistry Studies. Psychiatry Res Neuroimaging 2014;221:220-230 PMID: 24507117

251. Hasan KM, Moeller GF, Narayana PA. DTI-based Segmentation and Quantification of Human Brain Lateral Ventricular CSF Volumetry and Mean Diffusivity: Validation, Age, Gender effects and Biophysical Implications. Magn Reson Imag 2014;32:405-412 PMID: 24582546

252. Ma L, Steinberg JL, Hasan KM, Narayana PA, Kramer LA, Moeller FG. Stochastic Dynamic Causal Modeling of Working Memory Connections in Cocaine Dependence. Human Brain Mapping 2014;35:760–778.

253. Bapat R; Narayana P; Zhou Y; Parikh N. Magnetic Resonance Spectroscopy at Term Equivalent Age in Extremely Preterm Infants: Association with Cognitive and Language Development. Ped Neurol 2014;51:53-59.

254. Govindarajan K, Freeman L, Cai C, Rahbar M, Narayana PA. Effect of Intrinsic and Extrinsic Factors on Global and Regional Cortical Thickness. PLoS ONE 2014; 9: e96429.

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255. Narayana PA, Yu X, Hasan KM, Wilde EA, Levin HS, Hunter JV, Miller EM, Patel VS,

Robertson CS, McCarthy JJ. Multi-Modal MRI of Mild Traumatic Brain Injury. NeuroImage: Clinical 2015;7:87-97

256. Ma L, Steinberg JL, Cunningham KA, Lane SD, Kramer LA, Narayana PA, Kosten TR, Moeller FG. Inhibitory behavioral control: a stochastic dynamic causal modeling study using network discovery analysis. Brain Connectivity (Accepted for publication)

257. Hasan KM, Lincoln JA, Nelson F, Wolinsky JS, Narayana PA. Lateral Ventricular Cerebrospinal Fluid Diffusivity as a Potential Neuroimaging Marker of Brain Temperature in Multiple Sclerosis: A Hypothesis and Implications Magnetic Resonance Imaging. (in press)

258. Gabr RE, Sin, X, Pednekar A, Narayana PA Automated patient-specific optimization of three-dimensional double inversion recovery magnetic resonance imaging. Magn Reson Med (Accepted)

259. Datta S, Staewen D, Cofield SS, Cutter GR, Woilinsky JS, Narayana PA. Regional Gray Matter Atrophy in Relapsing Remitting Multiple Sclerosis: Baseline Analysis of Multi-Center Data Multiple Sclerosis and Related Disorders. Multiple Sclerosis Related Disorders Mult Scler Relat Disord. 2015;4:124-136

260. Ma L, Steinberg JL, Keyser-Marcus L, Ramesh D, Narayana PA, Merchant RE, Moeller FG Cifu D. Altered white matter in cocaine-dependent subjects with traumatic brain injury: a diffusion tensor imaging study. Drug Alcohol Depend 2015;151:128-134

261. Keser Z, Hasan KM, Mwangi B, Kamali A, Ucisik-Keser FE, Riascos RF, Yozbatiran N, Francisco GE, Narayana PA. Diffusion Tensor Imaging of Human Cerebellar Pathways and their Interplay with Cerebral Macrostructure. Front Neuroanatomy doi: 10.3389/fnana.2015.00041. eCollection 2015.PMID: 25904851

262. Liangsuo Ma L, Steinberg JL, Cunnigham KA, Lane SD,BjorkJM, Neelakantan H, Price AE, Narayana PA, Kosten TR, Moeller FG; Inhibitory behavioral control: A stochastic dynamic causal modeling study comparing cocaine dependent subjects and controls. NeuroImage: Clinical Neuroimage Clin. 2015 Mar 24;7:837-47. doi: 10.1016/j.nicl.2015.03.015. eCollection 2015

263. Govindarajan KA, Datta S, Hasan KM, Choi S, Rahbar MH, Cofield SS, Cutter GR, Lublin FD, Wolinsky JS, Narayana PA. Effect of In-painting on Cortical Thickness Measurements in Multiple Sclerosis: A Large Cohort Study. Human Brain Mapping Hum Brain Mapp. 2015 Jun 19. doi: 10.1002/hbm.22875. [Epub ahead of print]

264. Ma L, Steinberg JL, Moeller FG, Johns SE, Narayana PA Effect of cocaine dependence on brain connections: clinical implications. Expert Rev Neurother. 2015 Oct 29:1-13. [Epub ahead of print] PMID: 26512421

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C. INVITED ARTICLES:

1. Narayana, PA. and Kevan, L. Fourier transform analysis of ESEM (Review). Magn. Reson. Rev. 1983 7:239-274

2. Ophir, J., Shawker, T.H., Maklad, N.F., Miller, J.G., Flax, S.W., Narayana, PA., and Jones,

J.P.: Attenuation estimation in reflection: Progress and prospects. Ultrasonic Imag. 1984 6:349-395

3. Jensen, D.J., Narayana, PA., and Delayre, J.L.: Volume localization and T1 relaxation

times. Society of Magnetic Resonance in Medicine, Inc. (Newsletter) 1987 9:4-5 4. Narayana, PA., and Jackson, E.F.: Image-guided in vivo proton magnetic resonance

spectroscopy of human brain. Current Science 1991 61:340-351 5. Filippi, M., Horsfield, M.A., Hajnal, J.V., Narayana, PA., Udupa, J.K., Yousry, T.A.

Quantitative Assessment of Magnetic Resonance Imaging Lesion Load in Multiple Sclerosis. J. Neurol. Neurosurg. Psychiatry 1998 64(1):S88-S93

6. Narayana, PA., Bedell, B.J. Quantitation of Multiple Sclerosis Lesion Volumes on

Magnetic Resonance Imaging. Current Science. 1999 76(6):763-771 7. Lai, D., Narayana, PA. Confidence intervals of protons MRI-observed Neurochemicals in

Human Brain. Far East J. Theo. Stat. 1999 3(1):159-169 8. O’Connor, P., Lee, L., Ting, N.P., Narayana, PA., Wolinsky, J.S. Determinants of Overall

Quality of Life in Secondary Progressive MS: A Longitudinal Study. Neurology 2001 57:889-891

9. Wolinsky, J.S., and Narayana, PA. MR Spectroscopy in MS: Window into the Diseased

Brain. Curr. Opin. in Neurol. 2002 15:247-251

D. CHAPTERS: 1. Kevan, L. and Narayana, PA.: Disordered matrices. In: Multiple Electron Resonance

Spectroscopy. Chapter IV., Ed: M. Dorio, and J. Freed, New York; Plenum, 1978 229-259 2. Jensen, D.J., Brey, W.W., Tong, V.P., Narayana, PA., and Delayre, J.L.: A universal

pulse programmer for NMR imaging. In: Technology of Nuclear Magnetic Resonance, Eds: P.D. Esser and R.E. Johnson. The Society of Nuclear Medicine, Inc. 1984 205-214

3. Wagner, L.K., Narayana, PA., and Murry, Jr., R.C.: Medical Imaging. In: Imaging

Processes and Materials: Neblett's, 8th Edition. Eds: Walworth, V.K., Sturge, J.M., Sheep, A., Stroudsburg, and Van Nostrand, PA., Reinhold Company, Inc., 1989 497-566

4. Mehta, S.D., Kulkarni, M.V., Narayana, PA., and Partain, C.L.: MRI of kidney and

retroperitoneum. In: Magnetic Resonance Imaging, Chapter 31, 2nd Edition, Eds: Partain,

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C.L., Patton, J.A., Price, R.R., Kulkarni, M.V., and James, Jr., A.E. W.B. Saunders, 1988 503-523

5. Narayana, PA., Kulkarni, M.V., and Mehta, S.D.: Nuclear magnetic resonance of 23Na in

biological systems. In Magnetic Resonance Imaging, Chapter 91, 2nd Edition, Eds: Partain, C.L., Patton, J.A., Price, R.R., Kulkarni, M.V., and James, Jr., A.E. W.B. Saunders, pp 1988 1553-1563

6. Narayana, PA., Jackson, E.F., and Butler, I.J.: 1-H MRS of muscle physiology and

pathosiology. In Imaging Skeletal Muscle in Health and Disease. J. Fleckenstein, ed. Springer-Verlag, NY, 1993 131-145

7. Wolinsky, J.S., Narayana, PA., Doyle, T.J., Lindsey, J.W.: Pathological Mechanisms in

CNS demyelination: as Gleaned by Serial Magnetic Resonance Spectroscopic Imaging of Multiple Sclerosis. Abramsky, O., Ovadia, H., ed. Martin Dunitz Ltd., 1997 87-95

8. Narayana, PA. Magnetic Resonance of Spinal Cord Injury. Handbook on CNS Trauma.

Eds: Marwah J, Dixon E, Banik N. Prominent Press. Scottsdale, AZ, 2001 (7) 137-178 9. Wolinsky, J.S., Narayana, PA., He, R. Overview of Treatment Trials in Primary

Progressive Multiple Sclerosis: Early baseline clinical and MRI data of the PROMISe trial. Chapter. (Accepted for Publication)

10. Sajja, BR; Narayana, PA, Magnetic Resonance Spectroscopy of Developing Brain

Handbook of Developmental Cognitive Neuroscience, 2nd edition. Editors: Charles A. Nelson and Monica Luciana. Publisher: MIT press; p 338-350.

E. OTHER PROFESSIONAL COMMUNICATIONS: E1. Invited Lectures and Visiting Professorships: 1. "Tissue characterization by ultrasound." - Panel discussion. Presented at the 28th Annual

Meeting of the Am. Inst. Ultras. Med., New York, October 1983 2. "In vivo NMR imaging and spectroscopy." University of Houston, November 1984 3. "NMR probes." Baylor College of Medicine, March, 1985 4. "Magnetic imaging and in vivo spectroscopy." Presented at the 5th Annual Meeting of

Biomedical Engineering Research, University of Houston Campus, Houston, TX, March, 1987

5. "Basics of MR." Central State University, Edmondton, Oklahoma, January 25, 1989 6. "Magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS)."

Colloquium given at the University of Houston, Downtown, February 16, 1989 7. "Bigger is not better but may be bizarre." Presented to Neurology Residents, Grand Rounds,

University of Texas Medical School at Houston, TX, June 16, 1989

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8. "In vivo magnetic resonance studies for evaluating muscle function." Presented at National Aeronautics Space Administration (NASA), Clear Lake City, Texas, November 28, 1989

9. "Magnetic resonance imaging and magnetic resonance spectroscopy in medicine." Presented

at Austin College, Sherman, TX, December 5, 1989 10. "The role of in vivo proton MR spectroscopy in muscle disorders." Presented at CARRELL-

KRUSEN SYMPOSIUM, Texas Scottish Rite Hospital, Dallas, TX, February 23, 1990 11. "The role of in vivo magnetic resonance spectroscopic studies of muscle hypertrophy and

treatment." Presented to Shriners Hospitals for Crippled Children, Houston, TX, April 10, 1990

12. "Magnetic resonance imaging and in vivo magnetic resonance spectroscopy: A noninvasive

biopsy?" Seminar for graduate students at M.D. Anderson Cancer Center, Houston, TX, May 10, 1990

13. "Magnetic resonance imaging in Physics." Lecture to Radiology Residents in the MR

Conference Room, Hermann Hospital, Houston, TX, September 25, 1990 14. Resident Presentation, October 16, 1990 15. "Magnetic resonance of muscle." Presented at Texas Women's University, Houston, TX,

with Ian J. Butler, M.D., November 5, 1990 16. MR Lecture to Residents, November 13, 1990 17. MRI Clinical Conference, November 21, 1990 18. Angelo State University, GSBS Recruiting Trip, December 4, 1990 19. "In vivo NMR spectroscopy." Presented at the 1991 Medical Physics Seminar at M.D.

Anderson Cancer Center, March 7, 1991 20. "In vivo NMR spectroscopy: Clinical applications." Presented at the Symposium

Internacional de Física Médica in Monterrey, Mexico, November 22, 1991 21. "Clinical applications of magnetic resonance." Presented at the Spring 1992 Physics

Colloquium at Texas Tech University, Lubbock, TX - January 30, 1992 22. "Clinical applications of magnetic resonance imaging and spectroscopy." Presented for the

Houston Area Molecular Biophysics Program (Seminar Series) at Rice University, Houston, TX - April 3, 1992

23. Oklahoma State University, GSBS Recruiting Trip, November 10, 1994 24. MR Lecture to Residents, University of Texas-Houston Medical School. May 18, 1995 25. MR Lecture to Residents, University of Texas-Houston Medical School. May 31, 1995

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26. Segmentation Techniques on Multiparametric Classification. Magnetic Resonance

Techniques in Multiple Sclerosis, First Advance Course, Milan, Italy, May 15-17, 1997 27. Novel MRI pulse sequences for automated image segmentation. Presented at Consiglio

Nazionale delle Ricerche, Centro per la Medicina Nucleare., Naples, Italy, May 19, 1997 28. Quantitative MRI & MRSI in MS. Presented at UT Southwestern Medical Center in Dallas,

July 6, 1998 29. Magnetic Resonance: A Medical Imaging Modality. Presented to Science High School

Teachers at the School of Public Health on July 27, 1998 30. Magnetic Resonance Imaging and Its Application to Neurological Disorders. Presented at

Texas A & M University, Kingsville, Texas on December 3, 1998 31. Magnetic Resonance: A Multi-disciplinary Imaging Modality. Presented to students at

Texas A & M University, Kingsville, Texas on December 4, 1998 32. Diffusion Tensor Imaging of Human Brain with Magnetic Resonance. Presented to students

at the University of Houston on February 18, 1999 33. MRI Volumetry and Application to Neurological Disorders. Presented at the Recent Trends

in Biomedical Research in Bombay, India, September 27, 1999 34. Proton Spectroscopy Imaging on Multiple Sclerosis. Presented at All India Institute of

Medical Sciences in New Delhi, India, September 30, 1999 35. Automatic Segmentation of Magnetic Resonance Images of Brain. Presented at All India

Institute of Medical Sciences in New Delhi, October 1, 1999 36. Physics of Conventional Pulse Sequences. Presented at Sanjay Gandhi Postgraduate Institute

of Medical Sciences in Lucknow, India, October 4, 1999 37. Single Voxel Spectroscopy. Presented at Sanjay Ghandhi Postgraduate Institute of Medical

Sciences in Lucknow, India, October 5, 1999 38. The Role of MRI as A Surrogate Outcome Measure in Multiple Sclerosis. Presented at

National Institutes of Health in Washington, D.C. November, 1999

39. Acetate Metabolism is altered in some Multiple Sclerosis. Presented at the Neuroimaging Techniques in Multiple Sclerosis Concensus Roundtable in San Diego, CA, February 5, 2000

40. MRI Protocol for Promise Trial. Teva Pharmaceutical. London, England, February 18, 2000 41. Quantitative comparison of variable and constant repetition time proton spectroscopic

imaging. Eight Scientific Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine, Denver, CO, April, 2000

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42. MRI of Experimental Spinal Cord Injury. Whitaker Foundation, Austin. December 5, 2000 43. Role of Cholesterol in Spinal cord Injury. Mission Connect. TIRR. Houston, Texas.

December 15, 2000 44. Optimization of Magnetic Resonance Diffusion Tensor Imaging of Human Brain. Elshafiey

I, Narayana, P.A, Bilgen, M. Nineteenth Annual Houston Conference on Biomedical Engineering Research. University of Houston February 8-9, 2001

45. Dynamic Contrast-enhanced MRI of Experimental Spinal Cord Injury: In Vivo Studies.

Bilgen, M. & Narayana, PA. Nineteenth Annual Houston Conference on Biomedical Engineering Research. University of Houston February 8-9, 2001

46. Imaging of Rat Spine Injury Model. Narayana, PA. Nineteenth Annual Houston Conference

on Biomedical Engineering Research. University of Houston February 8-9, 2001 47. Quantitative Magnetic Resonance. Wayne State University. April 12, 2001 48. Magnetic Resonance of Experimental Spinal Cord. Seminary in Galveston, Texas. May 16,

2001 49. Injury Devices. Mission Connect. TIRR. Houston, Texas. May 18, 2001 50. MR lecture to residents. University of Texas-Houston Medical School. Introduction to the

Physics of MRI. September 24, 2001 51. Narayana, PA. Experimental Spinal Cord Injury and Advanced MRI at University of

Louisville School of Medicine in Louisville, Kentucky, January 19-20, 2003 52. Narayana, PA. Biomechanical Aspects of Spinal Cord Injury, at St. John’s College in

Vancouver, BC Canada, September 25-28, 2003 53. Narayana, PA. DTI Technical Aspects and MR Spectroscopy, at 38th Annual Congress of

Indian Radiological and Imaging Association in Agra, India on January 22-25, 2005 54. Narayana, PA. DTI Technical Aspects, at the GA/Neuroimaging Clinical Study Advisory

Group, TEVA Neuroscience, Kansas City, MO on April 21-22, 2005 55. Narayana, PA. Bruker Biospin MR Users meeting, Keynote Speaker, Frankfurt Germany on

October 10-13, 2005

56. Invited Speaker, MRI Morphometry, Neurospin; Scalay, France 2009

57. Invited Speaker, MRI of Spinal cord and GM Lesions in MS: Rewards and Pitfalls, London at Queen’s Square, 2009

58. Visiting Professor, Sanjay Gandhi Post-Graduate Medical Sciences. Lucknow, India 2009 59. Invited Faculty Outreach Program sponsored by the ISMRM 2009

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60. Invited Faculty, Role of DTI in Traumatic Brain Injury: Consensus Meeting; Chicago June 1,

2010 61. Invited faculty, Neuroimaging of MS: State-of-the-Art and Future Directions; Washington,

DC June 27, 2010 62. Expert, Evaluation of AERES Research Labs, France 2010 63. Invited Speaker, MRI-Based Biomarkers in Multiple Sclerosis: An Integrated Approach;

MICCAI (Med Image Computing and Comp. Assisted Interv), London 2010 64. Consultant, Multiple Sclerosis Core Consultant Meeting, Dallas July 30, 2010 65. Expert for Thesis evaluation, INRIA, Rennes, France 2010 66. Expert, INRIA Evaluation, France 2010 67. Visiting Professor, Rennes, France 2010

68. Teaching faculty, ISMRM Stockholm, Sweden May 1, 2010

69. Visiting Professor, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow,

India November 2010

70. Invited speaker, Global Outreach Program, 13th Annual Conference of Indian Society of Neuroradiology (ISNR) Trivandrum, India November 2010 

71. Invited speaker, Recent advances in MRI of Multiple Sclerosis Acorda Therapeutics, Inc., Hawthorne, New York, July 2011

72. Invited speaker, DWI Principles and Applications, ISMRM, Chandigarh, India, September 2011

73. Invited speaker, DTI Principles and Applications, ISMRM, Chandigarh, India, September 2011

74. Invited speaker, Multiple sclerosis - Advanced Imaging, ISMRM, Chandigarh, India, September 2011

75. Invited speaker, Proton MRS: Quantification and interpretation, ISMRM, Chandigarh, India, September 2011

76. Invited speaker, Proton MR Image quantification, ISMRM, Chandigarh, India, September 2011

77. Invited speaker, Beyond Structure: MRI of Spinal Cord Injury. Texas A&M University, Institute for Neuroscience, College Station, Texas, December 2011

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78. UTHSC Psychiatry grand rounds “What Can MRI Do For Psychiatry”, November 16, 2011

79. UTHSC Neurology grand rounds “Past, Present and Future of Magnetic Resonance Imaging”, November 18, 2011

80. ISMRM: Invited (teaching) “Neurological MR Imaging in Nutrition – Methods”, Melbourne, Australia, May 7, 2012

81. ISMRM: Invited (teaching) “Post-Processing & Quantification of Spinal Cord Images”, Melbourne, Australia, May 5, 2012

82. How did advanced MRI help us understand the pathophysiology in Multiple Sclerosis? Nanjing Medical School, Nanjing, China June 6, 2012

83. What Can MRI Do For Neuropsychology? Institute of Psychology, Chinese Academy of Science, Beijing, China June 13, 2012

84. Presenter at 16th Edition Advanced Course on Magnetic Resonance Techniques in Multiple Sclerosis. Presentation on The thalamus and basal ganglia. Milan, Italy September 2012

85. Research Advisory Board Meeting – Tampa, FL August 2012

86. Delhi 2013: Advanced MR imaging techniques in Neuro and Body applications, Fortis Memorial Research Institute. Basics of Diffusion, diffusion tensor, DSI. Basics of DSC, DCE and ASL. What is new in Advanced neuroimaging? February 2013

87. ISMRM Presentation on Regional Cortical Thickness in Relapsing Remitting Multiple Sclerosis: A Multi-Center Study– Salt Lake City, UT – April 2013

88. ISMRM Scientific Workshop Series 2013. Multiple Sclerosis as a Whole-Brain Disease. The Urgent Questions in MS Research: How Can MRI Help to Address Them? London - June 2013

89. 16th Annual Conference Indian Society of Neuroradiology. Alphabetic soup of MRI sequences’ & Essentials of perfusion imaging. Bangalore, India – September 2013

90. Virginia Commonwealth University Consultant, visiting professor – November 2013

91. CCCRP Neuroimaging IPR Discussion – Mission Connect Mild TBI Translational Research Consortium Imaging Core. Fort Detrick, MD – January 2014

92. Advanced MR Imaging Techniques in Neuro, MSK and Body Applications. Alphabetical Soup of MR Pulse Sequences. Fortis Memorial Research Institute. Gurgaon, India - February 2014

93. Advanced MR Imaging Techniques in Neuro, MSK and Body Applications. DTI of the Peripheral Nerves and Muscles. Fortis Memorial Research Institute. Gurgaon, India - February 2014

69

94. Academy of Radiology Research, Coalition for Imaging & Bioengineering Research

(CIBR) Medical Technology Showcase, Meeting with Rep. John Culberson & Sen. John Cornyn,Washington, DC - April 2014

95. Expert Reviewer for the Canada Foundation for Innovation (Brain Imaging) Competition,

Toronto, Canada – September 2014

96. ISMRM – ESMRMB Joint Annual Meeting - Temporal changes in regional atrophy in a large, relapsing multiple sclerosis cohort, Milan, Italy - May 2014

97. Annual Organization for Human Brain Mapping (OHBM) Meeting – Does Human Brain

Cortical Thickness Measured with MRI depend on the Magnetic Field Strength?, Hamburg, Germany, June 2014

98. Shriners Hospitals for Children (SHC) Research Advisory Board Reviewers Meeting –

Tampa, FL - August 2014

99. ISMRM Scientific Workshop - Safety in MRI, Guidelines, Rationale & Challenges, Washington, DC – September 2014

100. Virginia Commonwealth – Collaborator Research Meeting, Richmond, VA - November

2014

101. Invited Talk for CME on Advanced MR Imaging with Special Focus on Pediatric MRI - Fortis Memorial Research Institute, Gurgaon, India – February 2015

102. Invited Talk at Sidra Medical and Research Center – Doha, Qatar; India – February 2015 103. 5th Annual Traumatic Brain Injury Conference Washington, DC – April 2015

104. Shriners Clinical Committee, Research Advisory Board Meeting, Tampa, FL – August

2015

105. Radiological Society of North America (RSNA), Creating and Optimizing the Research Enterprise (CORE) Workshop, Oakbook, IL – October 2015

106. Molecular Psychiatry Association, 3rd Annual Molecular Psychiatry Meeting – Cocaine is

Toxic to White Matter: Diffusion Tensor Imaging – San Francisco, CA – October 2015