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Proceedings Paper

Time-resolved transillumination for medical diagnostics
Author(s): Roger Berg; Stefan Andersson-Engels; Olof Jarlman M.D.; Sune Svanberg
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Paper Abstract

We demonstrate a time-gated technique to reduce the effect of light scattering when transilluminating turbid media such as tissue. The concept is based on transillumination with picosecond laser pulses and time-resolved detection. By detecting only the photons with the shortest travelling time, and thus the least scattered photons, the contrast can be enhanced. Measurements on a tissue phantom as well as breast tissue in vitro are presented. It is demonstrated that differences in scattering properties may be more pronounced than differences in absorption properties when demarcating tumor from normal tissue.

Paper Details

Date Published: 1 May 1991
PDF: 10 pages
Proc. SPIE 1431, Time-Resolved Spectroscopy and Imaging of Tissues, (1 May 1991); doi: 10.1117/12.44183
Show Author Affiliations
Roger Berg, Lund Institute of Technology (Sweden)
Stefan Andersson-Engels, Lund Institute of Technology (Sweden)
Olof Jarlman M.D., Lund Univ. Hospital (Sweden)
Sune Svanberg, Lund Institute of Technology (Sweden)

Published in SPIE Proceedings Vol. 1431:
Time-Resolved Spectroscopy and Imaging of Tissues
Britton Chance, Editor(s)

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