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Temperature Profiles in a Finite Element Thermal Model of the Prostate Region Under Hyperthermia Treatment

Published online by Cambridge University Press:  28 February 2011

Indira Chatterjee ,
Roy E. Adams  and
Namdar Saniei
Indira Chatterjee
Affiliation:
Department of Electrical Engineering, University of Nevada, Reno, NV 89557
Roy E. Adams
Affiliation:
Department of Electrical Engineering, University of Nevada, Reno, NV 89557
Namdar Saniei
Affiliation:
Department of Electrical Engineering, University of California, Davis, CA 95617
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Abstract

The detailed transient temperature distribution in an inhomogeneous model of a cross section through the prostate region of the human body undergoing hyperthermia treatment forcancer has been calculated. The finite element method has been used to solve the bioheattransfer equation. A commercially available finite element software package called ANSYS® has been adapted to the present problem.

The model consists of 523 triangular elements and incorporates a tumor in the prostate.The hyperthermia device under test is an Annular Phased Array consisting of dipole antennas. The model is surrounded by a bolus of deionized water. The calculated electromagnetic energy distribution is input into the bioheat transfer equation and the resulting temperature distributions calculated.

The increase in blood perfusion rates due to heating is incorporated into the model. Detailed transient temperature profiles in the finite element model are presented for various values of blood perfusion rates in the tumor and surrounding tissues. It is observed that the Annular Phased Array is effective in raising the temperature of the tumor to therapeutic values.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 189: Symposium L – Microwave Processing of Materials II , 1990 , 185
Copyright
Copyright © Materials Research Society 1991

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References

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