Model-based complex shear modulus reconstruction: A Bayesian approach

Marko Orescanin, Michael Insana

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

Abstract

A narrow-band ultrasonic shear-wave imaging technique for estimating the complex shear modulus was applied to gelatin phantoms. This Bayesian approach incorporates the spatiotemporal geometry of shear waves radiating from a vibrating needle into a method for estimating modulus parameters. Compared to the phase gradient approach, this Bayesian method provides viscoelastic reconstructions for a single shear wave frequency. Estimates compare closely to results obtained using phase gradient method but with higher spectral resolution. We validated the assumption that the Kelvin-Voigt model, commonly applied in elasticity imaging situations, is representative of gelatin dispersion within the testing bandwidth between 50 and 450 Hz.

Original languageEnglish (US)
Title of host publication2010 IEEE International Ultrasonics Symposium, IUS 2010
Pages61-64
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

Fingerprint

S waves
gelatins
shear
estimating
gradients
imaging techniques
needles
spectral resolution
narrowband
elastic properties
ultrasonics
bandwidth
high resolution
estimates
geometry

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Orescanin, M., & Insana, M. (2010). Model-based complex shear modulus reconstruction: A Bayesian approach. In 2010 IEEE International Ultrasonics Symposium, IUS 2010 (pp. 61-64). [5935671] (Proceedings - IEEE Ultrasonics Symposium). https://doi.org/10.1109/ULTSYM.2010.5935671

Model-based complex shear modulus reconstruction : A Bayesian approach. / Orescanin, Marko; Insana, Michael.

2010 IEEE International Ultrasonics Symposium, IUS 2010. 2010. p. 61-64 5935671 (Proceedings - IEEE Ultrasonics Symposium).

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

Orescanin, M & Insana, M 2010, Model-based complex shear modulus reconstruction: A Bayesian approach. in 2010 IEEE International Ultrasonics Symposium, IUS 2010., 5935671, Proceedings - IEEE Ultrasonics Symposium, pp. 61-64, 2010 IEEE International Ultrasonics Symposium, IUS 2010, San Diego, CA, United States, 10/11/10. https://doi.org/10.1109/ULTSYM.2010.5935671
Orescanin M, Insana M. Model-based complex shear modulus reconstruction: A Bayesian approach. In 2010 IEEE International Ultrasonics Symposium, IUS 2010. 2010. p. 61-64. 5935671. (Proceedings - IEEE Ultrasonics Symposium). https://doi.org/10.1109/ULTSYM.2010.5935671
Orescanin, Marko ; Insana, Michael. / Model-based complex shear modulus reconstruction : A Bayesian approach. 2010 IEEE International Ultrasonics Symposium, IUS 2010. 2010. pp. 61-64 (Proceedings - IEEE Ultrasonics Symposium).
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