Share Email Print

Proceedings Paper

Finite element analysis of temperature-controlled laser coagulation of biological tissue
Author(s): Tami N. Fink; Sohi Rastegar; Steven L. Jacques; Frank K. Tittel
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Issues of coagulation control were considered by simulating a controlled surface temperature irradiation using thermal feedback to execute an appropriate temporal profile for laser power. In order to maintain a relatively `constant' temperature at the surface of the tissue, a non- uniform pulse sequence would be required. `Constant' surface temperature irradiation avoids high temperature effects, achieves relatively slow, steady progression of damage, allowing potential real-time monitoring and control of coagulation front position. Furthermore, the difference in damage depth prediction using a constant property model as compared with a temperature dependent optical property model is much less for a `constant' surface temperature irradiation than for a free running laser irradiation.

Paper Details

Date Published: 17 August 1994
PDF: 8 pages
Proc. SPIE 2134, Laser-Tissue Interaction V; and Ultraviolet Radiation Hazards, (17 August 1994); doi: 10.1117/12.182958
Show Author Affiliations
Tami N. Fink, Rice Univ. (United States)
Sohi Rastegar, Texas A&M Univ. (United States)
Steven L. Jacques, Univ. of Texas M.D. Anderson Cancer Ctr. (United States)
Frank K. Tittel, Rice Univ. (United States)

Published in SPIE Proceedings Vol. 2134:
Laser-Tissue Interaction V; and Ultraviolet Radiation Hazards
Steven L. Jacques; David H. Sliney; Michael Belkin M.D., Editor(s)

© SPIE. Terms of Use
Back to Top