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Proceedings Paper

Experimental set-up and Monte-Carlo model for the determination of optical tissue properties in the wavelength range 330 to 1100 nm
Author(s): Andre Roggan; Hans Joerg Albrecht; Klaus Doerschel; Olaf Minet; Gerhard J. Mueller
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Paper Abstract

The optical properties of different types of tissue were measured in the wavelength range 330 - 1100 nm. The measurements were carried out in native as well as in coagulated tissues. We used the double integrating sphere technique to provide reflection and transmission measurements and a special homogenizing technique to prepare the tissue. The optical properties were evaluated using an inverse Monte-Carlo simulation, considering the geometry of the experimental set-up. All tissues show characteristic absorption bands at 420 nm and 550 nm, related to the strong absorption of hemoglobin. After coagulation the scattering increases drastically while absorption remains nearly unchanged. The anisotropy factor g increases with increasing wavelength and drops down slightly after coagulation.

Paper Details

Date Published: 18 January 1995
PDF: 16 pages
Proc. SPIE 2323, Laser Interaction with Hard and Soft Tissue II, (18 January 1995); doi: 10.1117/12.199205
Show Author Affiliations
Andre Roggan, Laser-Medizin-Zentrum GmbH (Germany)
Hans Joerg Albrecht, Laser-Medizin-Zentrum GmbH (Germany)
Klaus Doerschel, Laser-Medizin-Zentrum GmbH (Germany)
Olaf Minet, Laser-Medizin-Zentrum GmbH (Germany)
Gerhard J. Mueller, Laser-Medizin-Zentrum GmbH (Germany)

Published in SPIE Proceedings Vol. 2323:
Laser Interaction with Hard and Soft Tissue II
Hans Joerg Albrecht; Guy P. Delacretaz; Thomas H. Meier; Rudolf W. Steiner; Lars Othar Svaasand; Martin J. C. van Gemert, Editor(s)

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