Comparison of shear wave velocities on ultrasound elastography between different machines, transducers, and acquisition depths: a phantom study

Objectives To investigate consistency in shear wave velocities (SWVs) on ultrasound elastography using different machines, transducers and acquisition depths. Methods The SWVs were measured using an elasticity phantom with a Young’s modulus of 16.9 kPa, with three recently introduced ultrasound elas...

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Bibliographic Details
Published in:European radiology 2016-10, Vol.26 (10), p.3361-3367
Main Authors: Shin, Hyun Joo, Kim, Myung-Joon, Kim, Ha Yan, Roh, Yun Ho, Lee, Mi-Jung
Format: Article
Language:English
Subjects:
Acoustics
Diagnostic Radiology
Elastic Modulus
Elasticity Imaging Techniques - instrumentation
Humans
Imaging
Internal Medicine
Interventional Radiology
Medicine
Medicine & Public Health
Neuroradiology
Phantoms, Imaging
Radiation
Radiology
Transducers
Ultrasonic imaging
Ultrasound
Velocity
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Summary:Objectives To investigate consistency in shear wave velocities (SWVs) on ultrasound elastography using different machines, transducers and acquisition depths. Methods The SWVs were measured using an elasticity phantom with a Young’s modulus of 16.9 kPa, with three recently introduced ultrasound elastography machines (A, B and C from different vendors) and two transducers (low and high frequencies) at four depths (2, 3, 4 and 5 cm). Mean SWVs from 15 measurements and coefficient of variations (CVs) were compared between three machines, two transducers and four acquisition depths. Results The SWVs using the high frequency transducer were not acquired at 5 cm depth in machine B, and a high frequency transducer was not available in machine C. The mean SWVs in the three machines were different ( p  ≤ 0.002). The CVs were 0–0.09 in three machines. The mean SWVs between the two transducers were different ( p  
ISSN:0938-7994
1432-1084
DOI:10.1007/s00330-016-4212-y