NDLI: Using ANSYS for three-dimensional electrical-thermal models for radio-frequency catheter ablation

Content Provider	IEEE Xplore Digital Library
Author	Tungjitkusolmun, S. Hong Cao Jang-Zern Tsai Webster, J.G.
Copyright Year	1997
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA (Tungjitkusolmun, S.)
Abstract	A three-dimensional finite element model was developed using ANSYS, a commercial finite element analysis software. The effect of temperature-dependent electrical and thermal conductivities to the FE model which incorporated cardiac muscle, blood, electrode and catheter body, was investigated in this study. Computer simulations were performed to calculate the temperature distribution during RF ablation. The authors compared the results of the two cases. For the first case, they used constant properties of the cardiac muscle. The ether case had varying temperature dependent properties. The maximum temperatures found in the cardiac tissue for both cases are significantly different. The lesion depth and volume were larger for the second case. However, the locations of the maximum temperature of both cases were the same. A careful examination of the heat-transfer system during RF ablation is needed.
Starting Page	161
Ending Page	164
File Size	295881
Page Count	4
File Format	PDF
ISBN	0780342623
ISSN	1094687X
DOI	10.1109/IEMBS.1997.754492
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-10-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite element methods Thermal conductivity Muscles Radio frequency Blood Electrodes Catheters Computer simulation Temperature distribution Temperature dependence
Content Type	Text
Resource Type	Article

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