Clinical measurements of tissue optical properties in the esophagus

Roland Bays; Georges A. Wagnieres; D. Robert; Jerome C. Mizeret; Daniel Braichotte; Hubert van den Bergh; Jean-Francois Savary; Philippe Monnier

doi:10.1117/12.198741

4 January 1995 Clinical measurements of tissue optical properties in the esophagus

Roland Bays, Georges A. Wagnieres, D. Robert, Jerome C. Mizeret, Daniel Braichotte, Hubert van den Bergh, Jean-Francois Savary, Philippe Monnier

Author Affiliations +

Proceedings Volume 2324, Optical Biopsy and Fluorescence Spectroscopy and Imaging; (1995) https://doi.org/10.1117/12.198741
Event: International Symposium on Biomedical Optics Europe '94, 1994, Lille, France

Abstract

A noninvasive probe has been devised and clinically used to perform in vivo measurements of the optical properties of the esophageal wall. The absorption coefficient and the effective scattering coefficient are determined from the observation of the spatial distribution of the diffuse reflectance at the tissue surface. Results, obtained at 514 and 630 nm, i.e. wavelengths of interest in photodynamic therapy with actual clinically used photosensitizers are summarized. An efficient and easily-built isotropic microprobe is also presented which is suitable to measure in situ the radiant energy fluence rate distribution in tissue.

Citation Download Citation

Roland Bays, Georges A. Wagnieres, D. Robert, Jerome C. Mizeret, Daniel Braichotte, Hubert van den Bergh, Jean-Francois Savary, and Philippe Monnier "Clinical measurements of tissue optical properties in the esophagus", Proc. SPIE 2324, Optical Biopsy and Fluorescence Spectroscopy and Imaging, (4 January 1995); https://doi.org/10.1117/12.198741

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