Measured Fractional Calculus Parameters for Shear Waves in Swine Liver

Steven A. Grosz; Rebeca Pereira; Matthew W. Urban; Tom Humphrey; Robert J. McGough

doi:10.1109/ULTSYM.2018.8580193

Measured Fractional Calculus Parameters for Shear Waves in Swine Liver

Steven A. Grosz, Rebeca Pereira, Matthew W. Urban, Tom Humphrey, Robert J. McGough

Physiology & Biomedical Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

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.

Original language	English (US)
Article number	8580193
Journal	IEEE International Ultrasonics Symposium, IUS
Volume	2018-January
DOIs	https://doi.org/10.1109/ULTSYM.2018.8580193
State	Published - 2018
Event	2018 IEEE International Ultrasonics Symposium, IUS 2018 - Kobe, Japan Duration: Oct 22 2018 → Oct 25 2018

Keywords

fractional calculus
power law attenuation
shear waves

ASJC Scopus subject areas

Acoustics and Ultrasonics

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10.1109/ULTSYM.2018.8580193

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title = "Measured Fractional Calculus Parameters for Shear Waves in Swine Liver",

abstract = "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.",

keywords = "fractional calculus, power law attenuation, shear waves",

author = "Grosz, \{Steven A.\} and Rebeca Pereira and Urban, \{Matthew W.\} and Tom Humphrey and McGough, \{Robert J.\}",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE International Ultrasonics Symposium, IUS 2018 ; Conference date: 22-10-2018 Through 25-10-2018",

year = "2018",

doi = "10.1109/ULTSYM.2018.8580193",

language = "English (US)",

volume = "2018-January",

journal = "IEEE International Ultrasonics Symposium, IUS",

issn = "1948-5719",

publisher = "IEEE Computer Society",

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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.

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 - https://www.scopus.com/pages/publications/85062599796

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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 -

Measured Fractional Calculus Parameters for Shear Waves in Swine Liver

Abstract

Keywords

ASJC Scopus subject areas

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