A numerical simulation of microwave, US and lasersource terms have been performed using the Pennes bioheatequation in a 1-D radial system in order to understand thesensitivity of different parameters governing these sourceterms. The energy deposition pattern for each of the threeprobes are different with US being able to deposit moreenergy towards the periphery compared to the microwaveand laser probe. Tissue attenuation properties play animportant role in determining the temperature distribution.A higher a leads to a lower peak temperature for bothmicrowave and US probes. While the variation in thetemperature profile over radial distance does not changesignificantly for a microwave probe with a change in a ,the US probe displays a flatter profile for higherattenuation compared to lower values. Also, an increase infrequency leads to higher radial temperatures for USapplicator. For laser source, a strongly absorbing tissueshows a rapid rise in temperature near the probe surfacefollowed by a drop off while a strongly scattering tissuedisplays a flatter temperature profile and much lower peaktemperatures. These studies will be helpful in theoptimization of thermal therapy protocols.
|Original language||English (US)|
|Title of host publication||Advances in Heat and Mass Transfer in Biotechnology|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Number of pages||8|
|State||Published - 2000|
|Event||ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000 - Orlando, United States|
Duration: Nov 5 2000 → Nov 10 2000
|Name||ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)|
|Conference||ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000|
|Period||11/5/00 → 11/10/00|
Bibliographical noteFunding Information:
ACKNOWLEDGMENTS This work was supported to JCB.
© 2000 American Society of Mechanical Engineers (ASME). All rights reserved.