1 June 1991 Temperature variations of reflection, transmission, and fluorescence of the arterial wall
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Proceedings Volume 1427, Laser-Tissue Interaction II; (1991) https://doi.org/10.1117/12.44097
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States
Abstract
The variations of reflection and transmission coefficients, as well as of the fluorescence response of the arterial wall are studied as a function of temperature. In a first experiment, reflection coefficient, transmission coefficient, and temperature, are measured during laser irradiation of the tissue. The fluorescence spectrum is recorded in a second experiment, together with temperature, during heating of the arterial wall in a vapor bath. The temperature dependence of the optical parameters and of the fluorescence response are then deduced. For the reflection and transmission coefficients, a direct correlation of their variations with temperature is measured. Extrema are observed in the temperature region at about 50 degree(s)C. A global decrease of the fluorescence intensity is characteristic of a temperature increase. These variations can be used as thermal markers, which in turn could give a criterion to control heat deposition in the tissue during laser anastomose.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Francois Chambettaz, Francois Chambettaz, Xavier Clivaz, Xavier Clivaz, Fabienne D. Marquis-Weible, Fabienne D. Marquis-Weible, Rene-Paul Salathe, Rene-Paul Salathe, } "Temperature variations of reflection, transmission, and fluorescence of the arterial wall", Proc. SPIE 1427, Laser-Tissue Interaction II, (1 June 1991); doi: 10.1117/12.44097; https://doi.org/10.1117/12.44097
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