Hyperelastic Strain Elastography to Measure Subcutaneous Adipose Tissue and Muscle Thickness: a Simulation Study

Gautam, SK and Arora, M (2024) Hyperelastic Strain Elastography to Measure Subcutaneous Adipose Tissue and Muscle Thickness: a Simulation Study. In: 2024 IEEE South Asian Ultrasonics Symposium, SAUS 2024, 27 March 2024through 29 March 2024, Hybrid, Gujarat.

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Abstract

Many different methods are available to find the overall body fat percentage. A-mode, as well as B-mode of ultrasound, have also been explored to measure Subcutaneous Adipose Tissue (SAT) thickness locally on different parts of the human body. These measurements are dependent on manual delineation of fat-muscle boundary and thus prone to error. It is known that there is a good contrast in elastic modulus of adipose tissue (1-5 kPa) and muscle tissue (6-150 kPa). This contrast can be useful for SAT thickness measurement using strain elastography. Also, in the current ultrasonic strain elastography technique, there is a limitation that tissue is considered linear elastic and hence limited to small strain deformations. This study advances the field by employing a Hyperelastic model theory and enabling us to perform quantitative measurements of shear modulus for large strains. We present results of a 1D simulation study to measure strain contrast between adipose tissue and muscle layer considering hyperelastic properties of the respective layers and local strains up to 40. Hyperelastic Strain Elastography (HESE) can serve as an easy method to find localized SAT thickness and characterization of hyperelastic tissues. A portable device can be made using HESE in 1D to measure localized SAT as well as muscle thicknesses. © 2024 IEEE.

Item Type:	Conference Paper
Publication:	SAUS 2024 - IEEE South Asian Ultrasonics Symposium, Proceedings
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Elastic moduli; Elasticity; Medical imaging; Muscle; Thickness measurement; Ultrasonic applications, Adipose tissue; Body fats; Elastography; Hyper elastic; Hyperelastic strain elastography; Localised; Muscle thickness; Simulation studies; Subcutaneous adipose tissues; Tissue thickness, Strain
Department/Centre:	Division of Mechanical Sciences > Department of Design & Manufacturing (formerly Centre for Product Design & Manufacturing)
Date Deposited:	19 Dec 2024 09:29
Last Modified:	19 Dec 2024 09:29
URI:	http://eprints.iisc.ac.in/id/eprint/85903

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