Title :
Interstitial hyperthermia temperature distribution prediction by FEM simulation
Author :
Panjehpour, Masoud ; Farison, James B. ; Milligan, Andrew J. ; Panjehpour, Pamela S.
Author_Institution :
Dept. of Electr. Eng., Toledo Univ., OH, USA
Abstract :
The development and verification of a mathematical model and finite-element computer simulation that predict the three-dimensional temperature profiles for RF interstitial hyperthermia treatment are reported. An analytical expression for the three-dimensional power-deposition patterns due to finite-length needle electrodes is given. The bioheat transfer equation is then solved numerically using the finite-element method. Simulation results were tested against experimental results for anesthetized dogs. Perfusion distribution within the treatment volume was measured using the trapped indicator method. Radio-labeled microspheres of 15- mu m diameter were used to measure blood flow. Simulated thermal profiles are presented and compared with experimental values.<>
Keywords :
biothermics; finite element analysis; physiological models; radiation therapy; radiofrequency heating; temperature distribution; 3D power deposition patterns; anesthetized dogs; bioheat transfer equation; finite-element computer simulation; finite-length needle electrodes; interstitial hyperthermia; mathematical model; perfusion distribution; radiolabelled microspheres; simulated thermal profiles; temperature distribution prediction; trapped indicator method;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95166
