Finite element analysis of temperature-controlled laser coagulation of biological tissue

Tami N. Glenn, Sohi Rastegar, Steve L. Jacques, Frank Tittel

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

Issues of coagulation control were considered by simulating a controlled surface temperature irradiation using thermal feedback to execute an appropriate temporal proffle for laser power. In order to maintain a relatively 'constant' temperature at the surface of the tissue, a nonuniform 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.

Original languageEnglish (US)
Article number1342
Pages (from-to)383-390
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2134
DOIs
StatePublished - Aug 17 1994
EventLaser-Tissue Interaction V; and Ultraviolet Radiation Hazards 1994 - Los Angeles, United States
Duration: Jan 23 1994Jan 29 1994

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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