Source terms in thermal therapy: A parametric study

Sankha Bhowmick, John C. Bischof

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

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 languageEnglish (US)
Title of host publicationAdvances in Heat and Mass Transfer in Biotechnology
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages161-168
Number of pages8
ISBN (Electronic)9780791819296
DOIs
StatePublished - 2000
EventASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000 - Orlando, United States
Duration: Nov 5 2000Nov 10 2000

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume2000-F

Conference

ConferenceASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000
Country/TerritoryUnited States
CityOrlando
Period11/5/0011/10/00

Bibliographical note

Funding Information:
ACKNOWLEDGMENTS This work was supported to JCB.

Publisher Copyright:
© 2000 American Society of Mechanical Engineers (ASME). All rights reserved.

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