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Proceedings Paper

Photoacoustic imaging of buried objects using an all-optical detection scheme
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Paper Abstract

Photoacoustic imaging may become an important imaging tool for several diagnostic procedures, e.g. as an alternative to mammography. Imaging of large objects, sub-mm to mm sized, buried deep in optically turbid tissue is feasible. Our investigation is primarily concentrated on characterizing a photoacoustic imaging system based on an all-optical detection scheme experimentally. The optical detection scheme is based on a novel dual-beam common path interferometer. The experimental investigation is carried out using a phantom comprised of slices of chicken breast tissue and the absorbing object made of silicon rubber. The imaging capability of the system is investigated as a function of the thickness of the tissue sample. By irradiating the absorber directly with a short pulsed laser beam, the influence of changes in the stress wave profile on the detected signal is monitored. Finally, preliminary experiments imaging buried, absorbing objects in tissue are carried out demonstrating the feasibility of this imaging method.

Paper Details

Date Published: 14 June 1999
PDF: 7 pages
Proc. SPIE 3601, Laser-Tissue Interaction X: Photochemical, Photothermal, and Photomechanical, (14 June 1999); doi: 10.1117/12.350013
Show Author Affiliations
Peter E. Andersen, Risoe National Lab. (Denmark)
Steen Gruner Hanson, Risoe National Lab. (Denmark)
Steven L. Jacques, Oregon Medical Laser Ctr. (United States)

Published in SPIE Proceedings Vol. 3601:
Laser-Tissue Interaction X: Photochemical, Photothermal, and Photomechanical
Steven L. Jacques; David H. Sliney; Gerhard J. Mueller; Gerhard J. Mueller; Andre Roggan; Andre Roggan; David H. Sliney, Editor(s)

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