MEASURE KNOWN TISSUE ELASTICITIES WITH SHEAR WAVE SYSTEMS
- Certified shear wave speed measurements
- Ensure over ten years of reliable use through reinspection and repair services
Best in industry four-year warranty
Shear wave elasticity imaging is an emerging biomarker with many possible applications, most prominently for determining 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 Imaging Biomarker Alliance, and serves as the standard reference tool for determining sources of variance in shear wave elasticity measurements (see references on page 2 of data sheet).
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 Young’s modulus will be provided with each phantom for proof of measurements with a precision of +/- 4%. Young’s modulus is tested on batch samples following ASTM standard D575-91 to ensure accurate elasticity. Density will also be measured to allow accurate conversion of shear wave speed to shear wave modulus and Young’s modulus.
Model 039 comes with a carry case for easy transport and phantom set up.
Key Features for Model 039:
The model 039 set contains phantoms with Young’s Modulus Values spanning the range healthy livers to those with cirrhosis, as follows:
- Phantom 1: 2 kPa
- Phantom 2: 8 kPa
- Phantom 3: 18 kPa
- Phantom 4: 36 kPa
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 versions of this phantom.