Measure Known Tissue Elasticity with Shear Wave Systems
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Certified    shear    wave    speed    measurements
 Ensure    over    10    years    of    reliable    use    through    reinspection    and    repair    services
 Includes best in industry four-year warranty
 Shear wave elasticity imaging is an emerging biomarker 
with many possible applications, most prominently for de
termining the stage of liver fibrosis in a patient without the 
need for invasive biopsies. The design of the Shear Wave 
Liver Fibrosis Phantom, Model 039, was developed and 
validated in a joint study sponsored by the Quantitative Im
aging Biomarker Alliance, and serves as the standard refer
ence tool for determining sources of variance in shear wave 
elasticity measurements (see references on next page).
 Our Model 039 consists of four phantoms – each filled with 
Zerdine® gel formulated with differing values of Young’s 
modulus, a tissue-average speed of sound of 1540 m/s 
and speckle contrast levels matching that of a healthy liver.
 Certification of shear wave speed will be provided with 
each phantom, with tests run on Verasonics Vantage™ 
research platform running open source code developed 
for the Quantitative Imaging Biomarkers Alliance (QIBA) 
Ultrasound Shear Wave Speed Committee.  The certifica
tion sheet provides the full dispersive analysis of shear 
wave speed, allowing performance assessment at different 
frequencies.
 Model 039 comes with a carry case for easy transport 
and phantom set up.
 Custom versions of this phantom, with different values for 
Young’s modulus and different sizes, are available upon 
special request. CIRS can also produce viscoelastic ver
sions of this phantom.
 Key    Features    for    Model    039
 • Set of 4 phantoms, each with a different stiffness 
(Young’s modulus ranges from 2 – 36 kPa)
 • Enables quantitative assessment of shear wave speed 
measurements used in the diagnosis of diffuse liver 
disease
 • Certified measurement of shear wave speed according 
to protocol developed by Quantitative Imaging Biomark
ers Alliance Ultrasound Shear Wave Speed committee
 • Re-certification of phantoms available