Complex shear modulus quantification from acoustic radiation force creep-recovery and shear wave propagation

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

4 Scopus citations

Abstract

Quantitative mechanical properties can be measured with shear wave elasticity imaging methods in a model-independent manner if both shear wave speed and attenuation are known. Typically, only shear wave speed is measured and rheological models are used to solve for the shear viscoelastic complex modulus. This paper presents a method to quantify viscoelastic properties in a model-independent way by estimating the loss tangent over a wide frequency range using time-dependent creep-recovery response induced by acoustic radiation force. The shear wave group velocity and the shear wave center frequency in combination with loss tangent are used to estimate the complex modulus so that knowledge of the applied radiation force magnitude is not necessary. Experimental data are obtained in one excised swine kidney.

Original languageEnglish (US)
Title of host publication2012 IEEE International Ultrasonics Symposium, IUS 2012
Pages1850-1853
Number of pages4
DOIs
StatePublished - Dec 1 2012
Event2012 IEEE International Ultrasonics Symposium, IUS 2012 - Dresden, Germany
Duration: Oct 7 2012Oct 10 2012

Publication series

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

Other

Other2012 IEEE International Ultrasonics Symposium, IUS 2012
CountryGermany
CityDresden
Period10/7/1210/10/12

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Keywords

  • complex shear modulus
  • creep
  • recovery

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Amador, C., Urban, M. W., Chen, S., & Greenleaf, J. F. (2012). Complex shear modulus quantification from acoustic radiation force creep-recovery and shear wave propagation. In 2012 IEEE International Ultrasonics Symposium, IUS 2012 (pp. 1850-1853). [6562117] (IEEE International Ultrasonics Symposium, IUS). https://doi.org/10.1109/ULTSYM.2012.0464