dual source ct user meeting care right - siemens · dual source ct user meeting – saturday, ......

Restricted © Siemens AG 2013 All rights reserved. siemens.com/answers

CARE Right Tiago Campos

(Siemens Europe)

Dual Source CT User Meeting – Saturday, 5 October 2013, NEMO33 in Brussels

Copyright © Siemens AG 2012. All rights reserved. Copyright © Siemens AG 2013. All rights reserved.

International Version - not yet approved for external distribution in the U.S., and maybe in other countries

CARE Right Committed to the Right Dose in CT

Tiago Campos

SWE CT BM

Drogenbos, October 5th 2013

Is 1 mSv the right dose

for every patient?

Male, 43 cranial CT to exclude lesion

Female, 59 CT scan of whole aorta to detect dissection

Female, 54 Abdominal CT

In this particular case,

0.9 mSv was the right dose





Courtesy of Wexford General Hospital / Newtown, Ireland Courtesy of Inselspital Bern / Bern, Switzerland Courtesy of C.I.M. Laennec / Cesson Sevigne, France

For the ideal balance

between radiation dose

and image quality:

Courtesy of Wexford General Hospital / Newtown, Ireland

CARE Right

The unique Siemens approach

CARE Right

Committed to the Right Dose in CT Right dose technology

Right dose levels

Right dose management

CARE Right

Committed to the Right Dose in CT

Right dose technology

Right dose levels


Right Dose Technology

Proven innovation and technological leadership

CARE Dose4D

UFC

X-CARE HandCARE

CARE kV

CARE Dashboard

Dose Alert

SAFIRE

IRIS

Flash Spiral Adaptive Cardio Sequence

Adaptive Dose Shield

80kV Pediatric Protocols

Selective

Photon Shield

Dual Source CT

Stellar Detector

CARE kV

First automated voltage setting

Allows contrast-to-noise ratio to

be optimized

Up to 60% dose reduction can be achieved

without compromise in image quality1

Zero click automated kV setting for each

individual patient

Maximum dose savings are

achieved when scanning a thin

patient. With CARE kV, 80 kV is

selected compared with the

standard 120 kV protocol

Up to

60%*

* Dose saving potential may vary depending on body region. 1: Vollmar SV, Kalender WA. Reduction of dose to the female breast in thoracic CT: a comparison of standard-protocol, bismuth-shielded, partial and tube-current-modulated CT examinations. Eur Radiol. 2008 Aug;18(8):1674-82.

Stellar Detector

Taking CT imaging to the next level

TrueSignal Technology

25% dose savings at the same noise

level

Minimized electronic noise allows for

higher signal-to-noise ratio

Increased sharpness with iterative

recon

Better utilization of mA reserves in low

kV scans

Up to

25%

2013-06-03

Restricted © Siemens AG 2013 All rights reserved.

H IM CR MK

The new Stellar detector

Detector module

2013-06-03


H IM CR MK

The new Stellar Detector

The Stellar Detector – the 1st fully integrated detector

• Detector design with full electronic integration

• X-rays in digital signal out

Photodiode

ADC

ADC Photodiode

2013-06-03


H IM CR MK

Key To Success

Miniaturized detector electronics

Standard Detector New Stellar Detector

AD circuit

Loss free

digital signal

Scatter Object

Photodiode

UFC

Photodiode

AD circuit board

Scatter Object

“weak” digital signal

• Ohmic loss

• Capacitive cross-talk

• Induction

UFC

Analogue cables

Conventional Detector New Stellar Detector

2013-06-03


H IM CR MK

Stellar Detector

The first fully integrated detector

First fully integrated CT detector

• The detector provides the digital output signal

no sensitive analog cables, external AD converters...

• Better image quality and less dose at high attenuation

by a significant reduction of the electronic noise

• Better spatial resolution

by a significant reduction of cross talk

Conventional

photodiode (PD)

Complex board

with AD-converters

Photodiode and AD-

converters in one ASIC

Simple board

without analog cables

and AD-converters

2013-06-03


H IM CR MK

The new Stellar Detector and Edge technology

Minimized cross-talk

• Minimized slice blurring for ultra-thin slices and increased spatial resolution

0.6 mm septa

aperture

~0.5 mm z - direction

X-ray

Detector signal (ideal)

cross-talk

Detector signal with cross-talk

Blurred slice profile Loss of spatial resolution

2013-06-03


H IM CR MK

The new Stellar detector and Edge technology

Minimized cross-talk

• Minimized slice blurring for ultra-thin slices and increased spatial resolution

0.6 mm septa

aperture

~0.5 mm

X-ray

minimized cross-talk

Detector signal with minimized cross-talk

Minimized slice blurring

Increased spatial resolution

z - direction

2013-06-03


H IM CR MK

Stellar Detector with Edge Technology

Physical proof of high resolution imaging

Standard Detector New Stellar Detector Conventional Detector New Stellar Detector

18.2 lp

MTF rho2

MTF: Modulation Transfer Function // FWHM: Full width at Half Maximum // Lp: Line Pairs per cm

0.52 mm FWHM 0.69 mm FWHM

0.6 mm slice

B70

0.5 mm slice

I70

Wire Phantom Wire Phantom 16.4 lp

MTF rho2

Increased

sharpness in the

visible spectrum

2013-06-03


H IM CR MK

Comparison between 0.5 and 0.6 mm

Higher diagnostic confidence with 0.5 mm

Courtesy of CIMOP Bizet, Paris, France

collimation: 128 x 0.6 mm

spatial resolution: 0.30 mm

scan time: 6 s

scan length: 146 mm

rotation time: 0.28 s

80 kV, 75 eff. mAs

DLP: 72.65 mGycm

CTDIvol: 4.38 mGy

1.0 mSv

HR: 67 bpm

SOMATOM Definition Edge

White arrow: soft plaque

0.6 mm

2013-06-03


H IM CR MK






scan time: 6 s

scan length: 146 mm


80 kV, 75 eff. mAs

DLP: 72.65 mGycm

CTDIvol: 4.38 mGy

1.0 mSv

HR: 67 bpm


Higher diagnostic confidence with 0.5 mm slices!

Orange arrow: fibrocalcified plaque White arrow: oft plaque

0.5 mm

2013-06-03


H IM CR MK





scan time: 6 s

scan length: 146 mm


80 kV, 75 eff. mAs

DLP: 72.65 mGycm

CTDIvol: 4.38 mGy

1.0 mSv

HR: 67 bpm


Higher diagnostic confidence with 0.5 mm slices!

Orange arrow: fibrocalcified plaque White arrow: soft plaque

0.5 mm 0.6 mm

2013-06-03


H IM CR MK


Sharper edges with 0.5 mm




scan time: 3 s

scan length: 99 mm


100 kV, 81 eff. mAs

DLP: 250 mGycm

CTDIvol: 12.83 mGy

3.5 mSv

HR: 57 bpm


White arrow: soft plaque

0.6 mm

2013-06-03


H IM CR MK






scan time: 3 s

scan length: 99 mm


100 kV, 81 eff. mAs

DLP: 250 mGycm

CTDIvol: 12.83 mGy

3.5 mSv

HR: 57 bpm


Sharper edges with 0.5 mm slices!


0.5 mm

2013-06-03


H IM CR MK






scan time: 3 s

scan length: 99 mm


100 kV, 81 eff. mAs

DLP: 250 mGycm

CTDIvol: 12.83 mGy

3.5 mSv

HR: 57 bpm


Sharper edges with 0.5 mm slices!


0.5 mm 0.6 mm

2013-06-03


H IM CR MK

0.5 mm slices

Sharper edges and higher diagnostic confidence


Sharper edges and higher diagnostic confidence with 0.5 mm slices!

0.5 mm 0.5 mm

Orange arrow: fibrocalcified plaques White arrow: soft plaque

2013-06-03


H IM CR MK

Stellar Detector in Coronary CTA

Increased vessel delineation and minimized blooming

enhanced stent evaluation

Courtesy of Department of Centre Cardio Thoracic, Monaco, Monaco

enhanced

calcified &

plaque lesion

evaluation

CARE Right



Right Dose Levels

Right Dose Management

Right Dose Levels

Understanding of absolute dose values

Altitude (ft)

30,000

15,000

0

Cosmic

Radiation

9,000

Example: Comparison of radiation exposure due to reduction of flight level

But the absolute level is what counts

Reduction by

30%

Reduction by

50%

Right Dose Levels

Using the absolute dose values

Knowing the clinical targets to scan with the right dose

Initial abdomen @ 120 kV

14 mGy with standard protocol Follow-up abdomen @ 100 kV

9.7 mGy using CARE kV

Clinical image courtesy of University of Erlangen, Germany

Right Dose Levels

Scanning at the right dose levels with Siemens CT

SOMATOM Definition Flash with absolute dose values

CARE Right



Right Dose Levels



The sustainable dose management

DoseMAP

Access, report and manage dose data

EduCARE

Continuous education of staff

Optimize CARE CT

Optimization of the current dose

situation


2013-06-03


Ivo Driesser H IM CR MK P

CT Image Contest

We are back

Footnote: Arial Regular 8 point. line spacing. 1.0 line. max. double spaced.

Dolor situs cum hab ilitarum itum alus es caus us imanenter status ex land.

October 21st 2013: end of submission

2013-06-03



Right Dose Image Contest

Highlights

• Attract participants

• Boost inter-activity

• Reach out to more

than 15,000 fans

• Your own profile page

• Self promotion

• Create your own picture

gallery

• Always the right dose

• Three h of webinars

• “How to” guides and

literature

2013-06-03



Right Dose Image Contest

Highlights

Consistency Award Valuable Prizes

• Image Quality

• Dose Level

• Consistent Dose Management

• Award, Certificate and Image

• Be part of our event at RSNA

• PR Support

CARE Right



Right dose levels

CARE Right


dual source ct user meeting care right - siemens · dual source ct user meeting – saturday, ......

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