Viscoelasticity and shear wave velocity of liver tissue evaluated by dynamic mechanical analysis

K. Murakami; M. Tsukune; Y. Kobayashi; M. Fujie; R. Kishimoto; T. Obata; K. Kawamura; K. Yoshida; T. Yamaguchi

doi:10.1109/ULTSYM.2015.0289

Viscoelasticity and shear wave velocity of liver tissue evaluated by dynamic mechanical analysis

K. Murakami, M. Tsukune, Y. Kobayashi, M. Fujie, R. Kishimoto, T. Obata, K. Kawamura, K. Yoshida, T. Yamaguchi

Waseda Research Institute for Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The frequency dependence of shear wave velocity provides significant information for evaluating viscoelastic character of tissue relating to liver fibrosis. Although Voigt model has been often used in viscoelastic analysis, several studies showed that the frequency dependence measured by dynamic mechanical analysis (DMA) test was not consistent with the theoretical prediction. To experimentally investigate the relationships of the change of the tissue structure and the viscoelasticity of tissue, the shear wave velocity of fatty and fibrotic livers of rat model was quantitatively measured by using shear wave elastography (SWE) and DMA test. In DMA test, shear wave velocity was calculated from the complex elasticity modulus; storage and loss elastic modulus. The difference in shear wave velocity between fatty and fibrotic livers was evaluated to be 0.27 m/s in SWE and 0.20 m/s in DMA test.

Original language	English
Title of host publication	2015 IEEE International Ultrasonics Symposium, IUS 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781479981823
DOIs	https://doi.org/10.1109/ULTSYM.2015.0289
Publication status	Published - 2015 Nov 13
Event	IEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan, Province of China Duration: 2015 Oct 21 → 2015 Oct 24

Other

Other	IEEE International Ultrasonics Symposium, IUS 2015
Country/Territory	Taiwan, Province of China
City	Taipei
Period	15/10/21 → 15/10/24

Keywords

elastography
freaquency dependence
rheometer
Shear wave
viscoelasticity properties

ASJC Scopus subject areas

Acoustics and Ultrasonics

Access to Document

10.1109/ULTSYM.2015.0289

Cite this

Murakami, K., Tsukune, M., Kobayashi, Y., Fujie, M., Kishimoto, R., Obata, T., Kawamura, K., Yoshida, K., & Yamaguchi, T. (2015). Viscoelasticity and shear wave velocity of liver tissue evaluated by dynamic mechanical analysis. In 2015 IEEE International Ultrasonics Symposium, IUS 2015 [7329370] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ULTSYM.2015.0289

Murakami, K, Tsukune, M, Kobayashi, Y, Fujie, M, Kishimoto, R, Obata, T, Kawamura, K, Yoshida, K & Yamaguchi, T 2015, Viscoelasticity and shear wave velocity of liver tissue evaluated by dynamic mechanical analysis. in 2015 IEEE International Ultrasonics Symposium, IUS 2015., 7329370, Institute of Electrical and Electronics Engineers Inc., IEEE International Ultrasonics Symposium, IUS 2015, Taipei, Taiwan, Province of China, 15/10/21. https://doi.org/10.1109/ULTSYM.2015.0289

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title = "Viscoelasticity and shear wave velocity of liver tissue evaluated by dynamic mechanical analysis",

abstract = "The frequency dependence of shear wave velocity provides significant information for evaluating viscoelastic character of tissue relating to liver fibrosis. Although Voigt model has been often used in viscoelastic analysis, several studies showed that the frequency dependence measured by dynamic mechanical analysis (DMA) test was not consistent with the theoretical prediction. To experimentally investigate the relationships of the change of the tissue structure and the viscoelasticity of tissue, the shear wave velocity of fatty and fibrotic livers of rat model was quantitatively measured by using shear wave elastography (SWE) and DMA test. In DMA test, shear wave velocity was calculated from the complex elasticity modulus; storage and loss elastic modulus. The difference in shear wave velocity between fatty and fibrotic livers was evaluated to be 0.27 m/s in SWE and 0.20 m/s in DMA test.",

keywords = "elastography, freaquency dependence, rheometer, Shear wave, viscoelasticity properties",

author = "K. Murakami and M. Tsukune and Y. Kobayashi and M. Fujie and R. Kishimoto and T. Obata and K. Kawamura and K. Yoshida and T. Yamaguchi",

year = "2015",

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doi = "10.1109/ULTSYM.2015.0289",

language = "English",

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booktitle = "2015 IEEE International Ultrasonics Symposium, IUS 2015",

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AU - Murakami, K.

AU - Tsukune, M.

AU - Kobayashi, Y.

AU - Fujie, M.

AU - Kishimoto, R.

AU - Obata, T.

AU - Kawamura, K.

AU - Yoshida, K.

AU - Yamaguchi, T.

PY - 2015/11/13

Y1 - 2015/11/13

N2 - The frequency dependence of shear wave velocity provides significant information for evaluating viscoelastic character of tissue relating to liver fibrosis. Although Voigt model has been often used in viscoelastic analysis, several studies showed that the frequency dependence measured by dynamic mechanical analysis (DMA) test was not consistent with the theoretical prediction. To experimentally investigate the relationships of the change of the tissue structure and the viscoelasticity of tissue, the shear wave velocity of fatty and fibrotic livers of rat model was quantitatively measured by using shear wave elastography (SWE) and DMA test. In DMA test, shear wave velocity was calculated from the complex elasticity modulus; storage and loss elastic modulus. The difference in shear wave velocity between fatty and fibrotic livers was evaluated to be 0.27 m/s in SWE and 0.20 m/s in DMA test.

AB - The frequency dependence of shear wave velocity provides significant information for evaluating viscoelastic character of tissue relating to liver fibrosis. Although Voigt model has been often used in viscoelastic analysis, several studies showed that the frequency dependence measured by dynamic mechanical analysis (DMA) test was not consistent with the theoretical prediction. To experimentally investigate the relationships of the change of the tissue structure and the viscoelasticity of tissue, the shear wave velocity of fatty and fibrotic livers of rat model was quantitatively measured by using shear wave elastography (SWE) and DMA test. In DMA test, shear wave velocity was calculated from the complex elasticity modulus; storage and loss elastic modulus. The difference in shear wave velocity between fatty and fibrotic livers was evaluated to be 0.27 m/s in SWE and 0.20 m/s in DMA test.

KW - elastography

KW - freaquency dependence

KW - rheometer

KW - Shear wave

KW - viscoelasticity properties

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M3 - Conference contribution

AN - SCOPUS:84962040529

SN - 9781479981823

BT - 2015 IEEE International Ultrasonics Symposium, IUS 2015

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - IEEE International Ultrasonics Symposium, IUS 2015

Y2 - 21 October 2015 through 24 October 2015

ER -

Viscoelasticity and shear wave velocity of liver tissue evaluated by dynamic mechanical analysis

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