Evaluation of the feasibility of measuring the fourth-order nonlinear parameter D in Ex vivo kidneys

Tomas Echavarria Bayter, Sara Aristizabal, Matthew W Urban

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

Abstract

Current elastography techniques can measure mechanical properties of soft tissues by estimating the elastic shear modulus, μ0. Recently, the assessment of tissue nonlinearity using acoustoelasticity (AE) has shown some promising results in differentiating healthy from malignant tissue by estimating a third-order nonlinear coefficient A. To fully characterize the nonlinear properties of the tissue, it may be necessary to develop techniques to also reliably estimate the fourth-order elastic constant D as the combination with the other parameters μ and A could provide diagnostic discriminatory power. This study evaluates the implementation of a three-parameter fit (μ0, A, D) to estimate the nonlinear properties of ex vivo kidneys using the shear modulus, μ vs. strain, estimates obtained when the phantoms are subjected to compression.

Original languageEnglish (US)
Title of host publication2017 IEEE International Ultrasonics Symposium, IUS 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781538633830
DOIs
StatePublished - Oct 31 2017
Event2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, United States
Duration: Sep 6 2017Sep 9 2017

Other

Other2017 IEEE International Ultrasonics Symposium, IUS 2017
CountryUnited States
CityWashington
Period9/6/179/9/17

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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    Bayter, T. E., Aristizabal, S., & Urban, M. W. (2017). Evaluation of the feasibility of measuring the fourth-order nonlinear parameter D in Ex vivo kidneys. In 2017 IEEE International Ultrasonics Symposium, IUS 2017 [8092478] IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2017.8092478