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Proceedings Paper

Photoacoustic viscoelasticity detection of biological tissues with phase-resolved method
Author(s): Yue Zhao; Sihua Yang
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Paper Abstract

A method for noninvasive viscoelasticity detection of biological tissues using phase-resolved photoacoustic measurement is presented. We deduced the process of photoacoustic effect on the basis of thermal viscoelasticity theory, and established the relationship between the photoacoustic phase delay and the viscosity-elasticity ratio for soft solids. Agar phantoms with different densities and different absorption coefficients were used to verify the dependence of photoacoustic phase-resolved viscoelasticity measurement. Moreover, viscoelasticity detection of tissues was obtained with a photoacoustic point scanning system. The photoacoustic phase-resolved method provides a basis for viscoelasticity detection, which can potentially be used for detection of viscoelastic properties and lesions of biological tissues.

Paper Details

Date Published: 13 March 2012
PDF: 8 pages
Proc. SPIE 8329, Tenth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2011), 83290E (13 March 2012); doi: 10.1117/12.918831
Show Author Affiliations
Yue Zhao, South China Normal Univ. (China)
Sihua Yang, South China Normal Univ. (China)


Published in SPIE Proceedings Vol. 8329:
Tenth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2011)
Qingming Luo; Lihong V. Wang; Valery V. Tuchin, Editor(s)

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