Hyperthermia is an important approach to treat tumor. Because the difference in the damage between normal and abnormal tissue disappears at high temperature, the distribution of temperature will influence the curative effect and the security of patients directly during laser treatment. Based on Monte-Carlo simulation of photon propagation, steady state temperature fields induced by continuous flat laser beam and Gaussian laser beam are calculated through solving bio-heat transfer equation with difference method, and the influences of various optical parameter on optical energy deposition and temperature elevation in biological are investigated in detail. The results show that pyrogenation area is wider than the area of light radiation, and the maximal energy deposition may not be corresponding to the maximal temperature elevation.

Date Published: 1 June 2001
PDF: 5 pages
Proc. SPIE 4247, Thermal Treatment of Tissue: Energy Delivery and Assessment, (1 June 2001); doi: 10.1117/12.427864

Published in SPIE Proceedings Vol. 4247:
Thermal Treatment of Tissue: Energy Delivery and Assessment
Thomas P. Ryan, Editor(s)