Simultaneous estimation of shear elastic modulus and backscatter coefficient: Phantom and in human liver in vivo study

Julien Rouyer; Gabriela Torres; Carolina Amador; Matthew W Urban; Roberto Lavarello

doi:10.1109/ULTSYM.2016.7728874

Simultaneous estimation of shear elastic modulus and backscatter coefficient: Phantom and in human liver in vivo study

Julien Rouyer, Gabriela Torres, Carolina Amador, Matthew W Urban, Roberto Lavarello

Physiology & Biomedical Engineering

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

3 Scopus citations

Abstract

The use of quantitative ultrasound (QUS) parameters to characterize tissue has shown potential to improve current clinical diagnosis. However, most studies in QUS have used parameters derived from either ultrasonic compressional or low frequency shear wave in isolation, thereby discarding additional information these parameters may carry. In this study, the feasibility of estimating both shear wave speed (SWS) and backscatter coefficient (BSC) when using a unique data set is demonstrated both with physical phantoms and in vivo human liver data. The phantom results showed contrast values of 8.16 and 1.71 for BSC and SWS. The in vivo liver results for BSC and SWS were in good agreement with previously reported values in the literature. Therefore, these results demonstrate that multi-parameter tissue characterization using BSC and SWS have a promising potential to track changes in both microscopic and macroscopic properties of tissue.

Original language	English (US)
Title of host publication	2016 IEEE International Ultrasonics Symposium, IUS 2016
Publisher	IEEE Computer Society
Volume	2016-November
ISBN (Electronic)	9781467398978
DOIs	https://doi.org/10.1109/ULTSYM.2016.7728874
State	Published - Nov 1 2016
Event	2016 IEEE International Ultrasonics Symposium, IUS 2016 - Tours, France Duration: Sep 18 2016 → Sep 21 2016

Other

Other	2016 IEEE International Ultrasonics Symposium, IUS 2016
Country/Territory	France
City	Tours
Period	9/18/16 → 9/21/16

Keywords

backscatter coefficient
quantitative ultrasound
shear wave speed

ASJC Scopus subject areas

Acoustics and Ultrasonics

Access to Document

10.1109/ULTSYM.2016.7728874

Cite this

Simultaneous estimation of shear elastic modulus and backscatter coefficient : Phantom and in human liver in vivo study. / Rouyer, Julien; Torres, Gabriela; Amador, Carolina; Urban, Matthew W; Lavarello, Roberto.

2016 IEEE International Ultrasonics Symposium, IUS 2016. Vol. 2016-November IEEE Computer Society, 2016. 7728874.

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

Rouyer, J, Torres, G, Amador, C, Urban, MW & Lavarello, R 2016, Simultaneous estimation of shear elastic modulus and backscatter coefficient: Phantom and in human liver in vivo study. in 2016 IEEE International Ultrasonics Symposium, IUS 2016. vol. 2016-November, 7728874, IEEE Computer Society, 2016 IEEE International Ultrasonics Symposium, IUS 2016, Tours, France, 9/18/16. https://doi.org/10.1109/ULTSYM.2016.7728874

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abstract = "The use of quantitative ultrasound (QUS) parameters to characterize tissue has shown potential to improve current clinical diagnosis. However, most studies in QUS have used parameters derived from either ultrasonic compressional or low frequency shear wave in isolation, thereby discarding additional information these parameters may carry. In this study, the feasibility of estimating both shear wave speed (SWS) and backscatter coefficient (BSC) when using a unique data set is demonstrated both with physical phantoms and in vivo human liver data. The phantom results showed contrast values of 8.16 and 1.71 for BSC and SWS. The in vivo liver results for BSC and SWS were in good agreement with previously reported values in the literature. Therefore, these results demonstrate that multi-parameter tissue characterization using BSC and SWS have a promising potential to track changes in both microscopic and macroscopic properties of tissue.",

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AB - The use of quantitative ultrasound (QUS) parameters to characterize tissue has shown potential to improve current clinical diagnosis. However, most studies in QUS have used parameters derived from either ultrasonic compressional or low frequency shear wave in isolation, thereby discarding additional information these parameters may carry. In this study, the feasibility of estimating both shear wave speed (SWS) and backscatter coefficient (BSC) when using a unique data set is demonstrated both with physical phantoms and in vivo human liver data. The phantom results showed contrast values of 8.16 and 1.71 for BSC and SWS. The in vivo liver results for BSC and SWS were in good agreement with previously reported values in the literature. Therefore, these results demonstrate that multi-parameter tissue characterization using BSC and SWS have a promising potential to track changes in both microscopic and macroscopic properties of tissue.

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Simultaneous estimation of shear elastic modulus and backscatter coefficient: Phantom and in human liver in vivo study

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Keywords

ASJC Scopus subject areas

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