Measurement of photoacoustic signals from skin: potential application to burn depth estimation

Shunichi Sato; Tomoaki Shimada; Tsunenori Arai; Makoto Kikuchi; Minoru Obara; Hiroshi Ashida

doi:10.1117/12.446677

24 October 2001 Measurement of photoacoustic signals from skin: potential application to burn depth estimation

Shunichi Sato, Tomoaki Shimada, Tsunenori Arai, Makoto Kikuchi, Minoru Obara, Hiroshi Ashida

Proceedings Volume 4434, Hybrid and Novel Imaging and New Optical Instrumentation for Biomedical Applications; (2001) https://doi.org/10.1117/12.446677
Event: European Conferences on Biomedical Optics, 2001, Munich, Germany

Abstract

We propose a new method of burn depth estimation based on the measurement of photoacoustic signal from the skin, where the acoustic waves originated from the light absorption by blood are detected with a piezoelectric transducer put on the skin surface. Because vascular occlusion takes place in the thermally-damaged tissue layer, the propagating time of the blood-originated signals would have the depth information of injury. To investigate the validity of the proposed diagnosis, experiment using rat burn model was performed. The results showed that deep burn (DB), deep dermal burn (DDB), and control (healthy skin) can be well differentiated by the photoacoustic signals. Quantitative information relating to the depth of injury can be also obtained from the signals.

Citation Download Citation

Shunichi Sato, Tomoaki Shimada, Tsunenori Arai, Makoto Kikuchi, Minoru Obara, and Hiroshi Ashida "Measurement of photoacoustic signals from skin: potential application to burn depth estimation", Proc. SPIE 4434, Hybrid and Novel Imaging and New Optical Instrumentation for Biomedical Applications, (24 October 2001); https://doi.org/10.1117/12.446677

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