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Proceedings Paper

Time- and space-resolved reflectance from multilayered turbid media
Author(s): Bernard Gelebart; Jean-Michel Tualle; Eric Tinet; Sigrid Avrillier; Jean-Pierre Ollivier
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Paper Abstract

Our purpose is to develop an optical technique for in-vivo and non-invasive diagnosis using backscattered light measurements. We have already demonstrated that optical coefficients of turbid media ((mu) a, (mu) s) can be derived from time and space-resolved reflectance in the case of semi-infinite geometry. This procedure was then applied to the investigation of multi-layered media: the upper layer was an aqueous solution of calibrated latex microspheres in water and the lower layer of the sample was a solid phantom. Two different types of phantoms were used. In the first set of experiments, we used an absorbing medium for under layer. In the second case, the lower layer was an absorbing and scattering phantom. Comparison with Monte-Carlo simulations were achieved for the resolution of the inverse problem.

Paper Details

Date Published: 14 January 1998
PDF: 11 pages
Proc. SPIE 3195, Laser-Tissue Interaction, Tissue Optics, and Laser Welding III, (14 January 1998); doi: 10.1117/12.297916
Show Author Affiliations
Bernard Gelebart, Univ. de Paris XIII (France)
Jean-Michel Tualle, Univ. de Paris XIII (France)
Eric Tinet, Univ. de Paris XIII (France)
Sigrid Avrillier, Univ. de Paris XIII (France)
Jean-Pierre Ollivier, HIA du Val-de-Grace (France)

Published in SPIE Proceedings Vol. 3195:
Laser-Tissue Interaction, Tissue Optics, and Laser Welding III
Guy P. Delacretaz; Guilhem Godlewski; Roberto Pini; Rudolf W. Steiner; Lars Othar Svaasand, Editor(s)

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