3D Shear wave imaging: A simulation and experimental study

Marko Orescanin, Yue Wang, Michael Insana

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The wave equation describing shear wave propagation in three-dimensional (3-D) viscoelastic media is solved numerically with a finite differences time domain (FDTD) method. Solutions are simulated in terms of scatterer velocity waves and verified via comparison to 3-D experimentally acquired wave fields in a heterogenous hydrogel phantom. The numerical algorithm is used as a tool to study wave refraction occurring at the surface of heterogeneities and its effect on complex shear modulus estimation. We used an algebraic reconstruction technique for direct inversion of the wave equation to image the shear modulus and study artifacts produced when reconstructing moduli from 2-D and 3-D velocity data. Although 3-D velocity estimates are required in general, there are object geometries where 2-D reconstructions provide accurate estimations of the material properties.

Original languageEnglish (US)
Title of host publication2010 IEEE International Ultrasonics Symposium, IUS 2010
Pages1035-1038
Number of pages4
DOIs
StatePublished - Dec 1 2010
Event2010 IEEE International Ultrasonics Symposium, IUS 2010 - San Diego, CA, United States
Duration: Oct 11 2010Oct 14 2010

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117

Other

Other2010 IEEE International Ultrasonics Symposium, IUS 2010
CountryUnited States
CitySan Diego, CA
Period10/11/1010/14/10

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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  • Cite this

    Orescanin, M., Wang, Y., & Insana, M. (2010). 3D Shear wave imaging: A simulation and experimental study. In 2010 IEEE International Ultrasonics Symposium, IUS 2010 (pp. 1035-1038). [5935669] (Proceedings - IEEE Ultrasonics Symposium). https://doi.org/10.1109/ULTSYM.2010.5935669