Measuring soft tissue elasticity by monitoring surface acoustic waves using image plane digital holography

Shiguang Li; Amy L. Oldenburg

doi:10.1117/12.883254

15 March 2011 Measuring soft tissue elasticity by monitoring surface acoustic waves using image plane digital holography

Shiguang Li, Amy L. Oldenburg

Author Affiliations +

Proceedings Volume 7965, Medical Imaging 2011: Biomedical Applications in Molecular, Structural, and Functional Imaging; 79652M (2011) https://doi.org/10.1117/12.883254
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States

Abstract

The detection of tumors in soft tissues, such as breast cancer, is important to achieve at the earliest stages of the disease to improve patient outcome. Tumors often exhibit a greater elastic modulus compared to normal tissues. In this paper, we report our first study to measure elastic properties of soft tissues by mapping the surface acoustic waves (SAWs) with image plane digital holography. The experimental results show that the SAW velocity is proportional to the square root of elastic modulus over a range from 3.7-122kPa in homogeneous tissue phantoms, consistent with Rayleigh wave theory. This technique also permits detection of the interface of two-layer phantoms 10mm deep under surface and the interface depth by quantifying the SAW dispersion.

Citation Download Citation

Shiguang Li and Amy L. Oldenburg "Measuring soft tissue elasticity by monitoring surface acoustic waves using image plane digital holography", Proc. SPIE 7965, Medical Imaging 2011: Biomedical Applications in Molecular, Structural, and Functional Imaging, 79652M (15 March 2011); https://doi.org/10.1117/12.883254

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