17 August 1994 Finite element analysis of temperature-controlled laser coagulation of biological tissue
Author Affiliations +
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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tami N. Fink, Sohi Rastegar, Steven L. Jacques, Frank K. Tittel, "Finite element analysis of temperature-controlled laser coagulation of biological tissue", Proc. SPIE 2134, Laser-Tissue Interaction V; and Ultraviolet Radiation Hazards, (17 August 1994); doi: 10.1117/12.182958; https://doi.org/10.1117/12.182958
PROCEEDINGS
8 PAGES


SHARE
Back to Top