Temperature variations of reflection, transmission, and fluorescence of the arterial wall

Francois Chambettaz; Xavier Clivaz; Fabienne D. Marquis-Weible; Rene-Paul Salathe

doi:10.1117/12.44097

1 June 1991 Temperature variations of reflection, transmission, and fluorescence of the arterial wall

Francois Chambettaz, Xavier Clivaz, Fabienne D. Marquis-Weible, Rene-Paul Salathe

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.

Citation Download Citation

Francois Chambettaz, Xavier Clivaz, Fabienne D. Marquis-Weible, and Rene-Paul Salathe "Temperature variations of reflection, transmission, and fluorescence of the arterial wall", Proc. SPIE 1427, Laser-Tissue Interaction II, (1 June 1991); https://doi.org/10.1117/12.44097

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available