Reconstructing the shear modulus contrast of linear elastic and isotropic media in quasi-static ultrasound elastography

This study focuses on the reconstruction of the shear modulus contrast in linear elastic and isotropic media, in quasi-static ultrasound elastography. The method proposed is based on the variational formulation of the equilibrium equations and on the choice of adapted discretization spaces to estima...

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Bibliographic Details
Published in:2021 43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) Vol. 2021; pp. 3177 - 3180
Main Authors: Brusseau, Elisabeth, Petrusca, Lorena, Bretin, Elie, Millien, Pierre, Seppecher, Laurent
Format: Conference Proceeding Journal Article
Language:English
Published: United States IEEE 01.11.2021
Subjects:
Biological system modeling
Breast
Elastic Modulus
Elasticity Imaging Techniques
Mathematical models
Media
Phantoms
Phantoms, Imaging
Three-dimensional displays
Ultrasonic imaging
ISSN:2694-0604, 2694-0604
Online Access:Get full text
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Summary:This study focuses on the reconstruction of the shear modulus contrast in linear elastic and isotropic media, in quasi-static ultrasound elastography. The method proposed is based on the variational formulation of the equilibrium equations and on the choice of adapted discretization spaces to estimate the parameters of interest. Experimental results obtained with CIRS phantoms are presented, for which regions with different mechanical properties can be clearly identified in the stiffness contrast maps. Elastic modulus images collected with a shear-wave elastography technique from a clinical ultrasound scanner (Aixplorer) are also provided for comparison. Results show very similar values for the modulus ratios determined by the two elastography approaches.
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ISSN:2694-0604
2694-0604
DOI:10.1109/EMBC46164.2021.9630973