Title :
Metal-tip monopoles for microwave ablation
Author :
Labonté, S. ; Blais, A. ; Roy, L.
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
Abstract :
We study the characteristics of various metal-tip monopole antennas for microwave catheter ablation of the endocardium. The investigation is done with a computer model based on the finite-element method in the frequency domain. The results are validated by making measurements of the reflection coefficient of antenna prototypes. We identify design trade-offs and propose optimum dimensions for a microwave applicator
Keywords :
biological effects of microwaves; cardiology; electromagnetic wave reflection; finite element analysis; frequency-domain analysis; hyperthermia; microwave antennas; microwave heating; monopole antennas; physiological models; radiation therapy; antenna prototypes; computer model; design trade-offs; endocardium; finite-element method; frequency domain; metal-tip monopole antennas; microwave ablation; microwave applicator; microwave catheter ablation; optimum dimensions; reflection coefficient; Antenna measurements; Applicators; Catheters; Coaxial cables; Electromagnetic heating; Frequency domain analysis; Maxwell equations; Prototypes; Reflection; Testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575109
