Abstract
Acoustic radiation force-based shear wave elasticity (SWE) methods are used to characterize soft tissue pathologies by quantifying tissue viscoelastic (VE) properties. To adequately evaluate SWE methods measurements of VE properties, it is important to characterize VE properties of tissue mimicking phantoms with an independent method. In this study a VE tissue mimicking phantom was developed and its concentration was modified to vary the shear viscosity. Three VE phantoms were studied with SWE and hyper frequency viscoelastic spectroscopy (HFVS). The VE properties were quantified by fitting a Kelvin-Voigt fractional derivative model to the measured shear wave speed. The mean shear elasticity of the three phantoms was from 3.4 to 3.7 kPa, the mean shear viscosity was from 1.7 to 17.4 Pa•s and the power of the fractional derivative model varied from 0.6 to 0.9.
Original language | English (US) |
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Title of host publication | 2015 IEEE International Ultrasonics Symposium, IUS 2015 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Print) | 9781479981823 |
DOIs | |
State | Published - Nov 13 2015 |
Event | IEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan, Province of China Duration: Oct 21 2015 → Oct 24 2015 |
Other
Other | IEEE International Ultrasonics Symposium, IUS 2015 |
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Country/Territory | Taiwan, Province of China |
City | Taipei |
Period | 10/21/15 → 10/24/15 |
Keywords
- phantoms
- spectroscopy
- SWEI
- viscoelasticity
ASJC Scopus subject areas
- Acoustics and Ultrasonics