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Proceedings Paper

Characteristic analysis of photoacoustic signal generated in biological tissue
Author(s): Shengyou Qian; Da Xing
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Paper Abstract

The characteristics of photoacoustic signals generated in real biological tissues are analyzed in time domain and in frequency domain through experiments. It is found that the frequency ranges of photoacoustic signals generated in fresh porcine fat, muscle, liver and kidney are about 5.0 MHz, 1.5 MHz, 2.0 MHz and 2.0 MHz respectively, and their duration is about 1-4 microsecond(s) . A positive peak is very obvious in the photoacoustic waveform of porcine liver, and a negative peak is sharp in the photoacoustic waveform of porcine fat. The main frequencies of photoacoustic signal are relatively stable, which correspond to the properties of biological tissues. The results obtained here are significant for photoacoustic tomography of biological tissue.

Paper Details

Date Published: 12 April 2002
PDF: 4 pages
Proc. SPIE 4536, International Workshop on Photonics and Imaging in Biology and Medicine, (12 April 2002); doi: 10.1117/12.462551
Show Author Affiliations
Shengyou Qian, Hunan Normal Univ. and South China Normal Univ. (China)
Da Xing, South China Normal Univ. (China)


Published in SPIE Proceedings Vol. 4536:
International Workshop on Photonics and Imaging in Biology and Medicine

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