NDLI: Heating distribution of multipolar radiofrequency ablation catheters

Content Provider	IEEE Xplore Digital Library
Author	Mirotznik, M.S. Demazumder, D.T. Jones, J.R. Schwartzman, D.S.
Copyright Year	1997
Description	Author affiliation: Dept. of Electr. Eng., Catholic Univ. of America, Washington, DC, USA (Mirotznik, M.S.)
Abstract	Radiofrequency (RF) catheter ablation therapy has been recognized as an effective treatment for a variety of cardiac arrhythmias. In fact, for several arrhythmias, including Wolf-Parkinson-White Syndrome, this technique is greater than 95% curative. However, when applied for the treatment of ventricular tachycardia or atrial fibrillation, RF catheter ablation has been far less successful. It is believed that the small lesions produced by current RF catheters are not sufficient to reliably treat these disorders. This study presents experimental measurements of heating patterns of commercially available multipolar RF ablation catheters. Three different electrode configurations were investigated. Results revealed significant differences in the catheter specific absorption rate pattern across the different configurations. Further in vitro and in vivo studies are underway to investigate these effects on actual lesion formation.
Starting Page	157
Ending Page	160
File Size	279755
Page Count	4
File Format	PDF
ISBN	0780342623
ISSN	1094687X
DOI	10.1109/IEMBS.1997.754491
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	Heating Radio frequency Catheters Electrodes Specific absorption rate Energy measurement Lesions Thermistors Temperature Pulse measurements
Content Type	Text
Resource Type	Article

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