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TECHNICAL PAPERS

Monte Carlo Model for Determination of the Role of Heat Generation in Laser-Irradiated Tissue

[+] Author and Article Information
A. J. Welch, C. M. Gardner

Biomedical Engineering Program, The University of Texas at Austin, Austin, TX 78712

J Biomech Eng 119(4), 489-495 (Nov 01, 1997) (7 pages) doi:10.1115/1.2798298 History: Received March 13, 1996; Revised November 14, 1996; Online October 30, 2007

Abstract

A Monte Carlo model is described for modeling photo propagation in a scattering medium. The fraction of locally absorbed photons is proportional to the local rate of heat generation in laser-irradiated tissue and the associated distribution of light (fluence rate) is obtained by dividing the rate of heat generation by the local absorption coefficient. Examples of computed distributions of the rate of heat generation are presented for situations where light scattering in tissue is important. The method is applied to analyze treatment of Port Wine Stain and the selection of laser wave-lengths for cyclophotocoagulation.

Copyright © 1997 by The American Society of Mechanical Engineers
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