TY - GEN
T1 - Model-based complex shear modulus reconstruction
T2 - 2010 IEEE International Ultrasonics Symposium, IUS 2010
AU - Orescanin, Marko
AU - Insana, Michael
PY - 2010
Y1 - 2010
N2 - A narrow-band ultrasonic shear-wave imaging technique for estimating the complex shear modulus was applied to gelatin phantoms. This Bayesian approach incorporates the spatiotemporal geometry of shear waves radiating from a vibrating needle into a method for estimating modulus parameters. Compared to the phase gradient approach, this Bayesian method provides viscoelastic reconstructions for a single shear wave frequency. Estimates compare closely to results obtained using phase gradient method but with higher spectral resolution. We validated the assumption that the Kelvin-Voigt model, commonly applied in elasticity imaging situations, is representative of gelatin dispersion within the testing bandwidth between 50 and 450 Hz.
AB - A narrow-band ultrasonic shear-wave imaging technique for estimating the complex shear modulus was applied to gelatin phantoms. This Bayesian approach incorporates the spatiotemporal geometry of shear waves radiating from a vibrating needle into a method for estimating modulus parameters. Compared to the phase gradient approach, this Bayesian method provides viscoelastic reconstructions for a single shear wave frequency. Estimates compare closely to results obtained using phase gradient method but with higher spectral resolution. We validated the assumption that the Kelvin-Voigt model, commonly applied in elasticity imaging situations, is representative of gelatin dispersion within the testing bandwidth between 50 and 450 Hz.
UR - http://www.scopus.com/inward/record.url?scp=80054742918&partnerID=8YFLogxK
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U2 - 10.1109/ULTSYM.2010.5935671
DO - 10.1109/ULTSYM.2010.5935671
M3 - Conference contribution
AN - SCOPUS:80054742918
SN - 9781457703829
T3 - Proceedings - IEEE Ultrasonics Symposium
SP - 61
EP - 64
BT - 2010 IEEE International Ultrasonics Symposium, IUS 2010
Y2 - 11 October 2010 through 14 October 2010
ER -