TY - JOUR
T1 - Measured Fractional Calculus Parameters for Shear Waves in Swine Liver
AU - Grosz, Steven A.
AU - Pereira, Rebeca
AU - Urban, Matthew W.
AU - Humphrey, Tom
AU - McGough, Robert J.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018
Y1 - 2018
N2 - Shear waves are highly attenuated in soft tissue, and the attenuation of shear waves in soft tissue follows a power law. To characterize the power law attenuation of shear waves, complex shear modulus values are measured before and after swine liver samples are immersed in formalin for 1 hour. Measured values are shown for two different swine liver samples, and then the frequency-dependent shear wave attenuation constant and the power law exponent are extracted from these measured values. Substantial changes are observed in the shear wave attenuation constant after immersion in formalin. Each measurement shows that the shear wave attenuation follows a power law with an exponent that is between 0.77 and 1.07.
AB - Shear waves are highly attenuated in soft tissue, and the attenuation of shear waves in soft tissue follows a power law. To characterize the power law attenuation of shear waves, complex shear modulus values are measured before and after swine liver samples are immersed in formalin for 1 hour. Measured values are shown for two different swine liver samples, and then the frequency-dependent shear wave attenuation constant and the power law exponent are extracted from these measured values. Substantial changes are observed in the shear wave attenuation constant after immersion in formalin. Each measurement shows that the shear wave attenuation follows a power law with an exponent that is between 0.77 and 1.07.
KW - fractional calculus
KW - power law attenuation
KW - shear waves
UR - http://www.scopus.com/inward/record.url?scp=85062599796&partnerID=8YFLogxK
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U2 - 10.1109/ULTSYM.2018.8580193
DO - 10.1109/ULTSYM.2018.8580193
M3 - Conference article
AN - SCOPUS:85062599796
SN - 1948-5719
VL - 2018-January
JO - IEEE International Ultrasonics Symposium, IUS
JF - IEEE International Ultrasonics Symposium, IUS
M1 - 8580193
T2 - 2018 IEEE International Ultrasonics Symposium, IUS 2018
Y2 - 22 October 2018 through 25 October 2018
ER -