Computation of hyperthermia-sar distributions in 3-D

S. Ratnajeevan, H. Hoole, Vythilingham Sathiaseelan, Ampere Tseng

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A formulation for the solution of the general Maxwell's equations to predict the electromagnetic power deposition in a three dimensional model of a human body irradiated by an annular array applicator is investigated in this paper. Methods for generating.the grid, as well as displaying the three dimensional solution are presented. A least square finite element approach to the problem is developed. Difficulties which arise as a result of the finite element trial functions are identified. As a result, it is difficult to impose the divergence and curl equations together. The boundary element formulation which relies on free space analytical solution, is shown to overcome this difficulty and is demonstrated in two dimensions. These methods form the basis of a treatment planning system under development which will have the capability of generating the finite element grid model of the body from computerized tomography scans, solve for the fields and display the absorbed power distributions.

Original languageEnglish (US)
Pages (from-to)1011-1014
Number of pages4
JournalIEEE Transactions on Magnetics
Volume26
Issue number2
DOIs
StatePublished - Mar 1990

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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