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Proceedings Paper

Measuring soft tissue elasticity by monitoring surface acoustic waves using image plane digital holography
Author(s): Shiguang Li; Amy L. Oldenburg
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Paper 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.

Paper Details

Date Published: 16 March 2011
PDF: 7 pages
Proc. SPIE 7965, Medical Imaging 2011: Biomedical Applications in Molecular, Structural, and Functional Imaging, 79652M (16 March 2011); doi: 10.1117/12.883254
Show Author Affiliations
Shiguang Li, The Univ. of North Carolina at Chapel Hill (United States)
Amy L. Oldenburg, The Univ. of North Carolina at Chapel Hill (United States)


Published in SPIE Proceedings Vol. 7965:
Medical Imaging 2011: Biomedical Applications in Molecular, Structural, and Functional Imaging
John B. Weaver; Robert C. Molthen, Editor(s)

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