sono elastography meeting pavia 2011 may 29-30 - presentation of dr. masciotra
DESCRIPTION
This presentation was held by dr. Antonio Pio Masciotra in 2011 at Pavia's Elastography Meeting in the round tableTRANSCRIPT
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Thyroid round table
Dr. Antonio Pio Masciotra
Campobasso
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THE HISTORY OF SONO-ELASTOGRAPHY
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Strain Shear wave
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STRAIN with different compressions
Inhomogeneous elasticity Uniform low elasticity
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SHEAR WAVENormal gland 8.29 kPa
Nodule 8.46 kPa
Normal gland 1.66 m/sec
Nodule 1.68 m/sec
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Strain Shear wave
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Soft or Hard ?STRAIN
Mainly ‘soft’ thyroid nodule
SHEAR WAVE
Mainly ‘hard’ thyroid nodule
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Hard or Soft?Shear wave
kPa 65.87
Shear wave
3.69 m/sec
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Are our measurements really indicative of tissue elasticity values?
QA sono-elasticitography phantom
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We need to have standards of unity measures
BACKGROUND
• Material : Zerdine®• Speed of sound : 1545 m/s ± 10
m/s• Attenuation Coefficient : 0.50 dB/cm-MHz
LESIONI
• Material : Zerdine® • Attenuation Coefficient : 0.50 dB/cm-MHz
ELASTICITY
• Background: 25 kPa• Lesion Type I: 08 kPa • Lesion Type II: 14 kPa • Lesion Type III: 45 kPa • Lesion Type IV: 80 kPa
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Different reference values in quantification and staging of hepatic fibrosis
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Aims of elastography
Correct tissue elasticity quantification
Identification of ‘cut off’ elasticity values for correct diagnosis of diffuse and
focal diseases
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SO WE NEED TO HAVE STANDARDS BOTH IN
TECHNIQUES OF ACQUISITION AND IN THE
MEASUREMENTS
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Thanks to my Technicians
Mr. Nicolino Spina and
Mrs. Carmela Leccese
By
Dr. Antonio Pio Masciotra
Campobasso-Molise- Italy
To
ZAPRAD