A two-dimensional finite difference model of shear wave propagation in anisotropic soft tissue

Yiqun Yang; Matthew W. Urban; Robert J. McGough

doi:10.1109/ULTSYM.2014.0579

A two-dimensional finite difference model of shear wave propagation in anisotropic soft tissue

Yiqun Yang, Matthew W. Urban, Robert J. McGough

Physiology & Biomedical Engineering

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

1 Scopus citations

Abstract

A rotated-staggered grid finite difference algorithm solves the stiff problem that occurs in conventional grid finite difference calculations when simulating elastic wave propagation in anisotropic soft tissue. The grid is formed by rotated rectangles with displacement values on the vertices. In addition, the strain values are located at the center of each mesh cell. Simulations of elastic wave propagation using the rotated-staggered grid scheme are performed in transversely isotropic media, and the results show that the rotated-staggered grid scheme is effective for soft tissue, which has a relatively large bulk-to-shear wave speed ratio.

Original language	English (US)
Title of host publication	IEEE International Ultrasonics Symposium, IUS
Publisher	IEEE Computer Society
Pages	2323-2326
Number of pages	4
ISBN (Electronic)	9781479970490
DOIs	https://doi.org/10.1109/ULTSYM.2014.0579
State	Published - Oct 20 2014
Event	2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States Duration: Sep 3 2014 → Sep 6 2014

Publication series

Name	IEEE International Ultrasonics Symposium, IUS
ISSN (Print)	1948-5719
ISSN (Electronic)	1948-5727

Other

Other	2014 IEEE International Ultrasonics Symposium, IUS 2014
Country/Territory	United States
City	Chicago
Period	9/3/14 → 9/6/14

ASJC Scopus subject areas

Acoustics and Ultrasonics

Access to Document

10.1109/ULTSYM.2014.0579

Cite this

A two-dimensional finite difference model of shear wave propagation in anisotropic soft tissue. / Yang, Yiqun; Urban, Matthew W.; McGough, Robert J.
IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society, 2014. p. 2323-2326 6932322 (IEEE International Ultrasonics Symposium, IUS).

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

Yang, Y, Urban, MW & McGough, RJ 2014, A two-dimensional finite difference model of shear wave propagation in anisotropic soft tissue. in IEEE International Ultrasonics Symposium, IUS., 6932322, IEEE International Ultrasonics Symposium, IUS, IEEE Computer Society, pp. 2323-2326, 2014 IEEE International Ultrasonics Symposium, IUS 2014, Chicago, United States, 9/3/14. https://doi.org/10.1109/ULTSYM.2014.0579

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abstract = "A rotated-staggered grid finite difference algorithm solves the stiff problem that occurs in conventional grid finite difference calculations when simulating elastic wave propagation in anisotropic soft tissue. The grid is formed by rotated rectangles with displacement values on the vertices. In addition, the strain values are located at the center of each mesh cell. Simulations of elastic wave propagation using the rotated-staggered grid scheme are performed in transversely isotropic media, and the results show that the rotated-staggered grid scheme is effective for soft tissue, which has a relatively large bulk-to-shear wave speed ratio.",

author = "Yiqun Yang and Urban, {Matthew W.} and McGough, {Robert J.}",

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AB - A rotated-staggered grid finite difference algorithm solves the stiff problem that occurs in conventional grid finite difference calculations when simulating elastic wave propagation in anisotropic soft tissue. The grid is formed by rotated rectangles with displacement values on the vertices. In addition, the strain values are located at the center of each mesh cell. Simulations of elastic wave propagation using the rotated-staggered grid scheme are performed in transversely isotropic media, and the results show that the rotated-staggered grid scheme is effective for soft tissue, which has a relatively large bulk-to-shear wave speed ratio.

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A two-dimensional finite difference model of shear wave propagation in anisotropic soft tissue

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