NDLI: A New System for Whole-atrial Epicardial Mapping

Content Provider	IEEE Xplore Digital Library
Author	Cuiwei Yang Zuxiang Fang Xiaomei Wu Jun Lu Anqi Lou
Copyright Year	2005
Description	Author affiliation: Dept. of Electron. Eng., Fudan Univ., Shanghai (Cuiwei Yang; Zuxiang Fang; Xiaomei Wu; Jun Lu; Anqi Lou)
Abstract	Epicardial mapping system is an important tool in the study and treatment of cardiac arrhythmias. Surgical therapy has been applied to eliminate atrial fibrillation (AF) for almost two decades, but there is still little effect on the treatment of AF in respect that the mechanism of AF is still unknown. Further investigation into the electrophysiological properties in AF is required to develop an appropriate treatment, though radiofrequency ablation has opened the new era of therapies for AF. Nevertheless, the sequential epicardial mapping for whole-atrium will increase the benefit to understand electrical mechanism during AF. The purpose of our research is to detect the electrical activity on the atrial surface and therefore find the optimal technique or ablation procedures to prevent AF. Animal tests were operated on ten dogs in which chronic AF had been induced. In experiment whole-atrial electrodes were located on the atrial surface after the heart had been exposed. Fach 20-second sampling data during sinus or atrial fibrillation rhythm were recorded and stored for analysis. Three-dimensional dynamic maps are presented clearly and the activity of sinus or AF rhythm can be seen quite differently. The active isopotential map can display the dynamic electrical conduction of the atria as a movie. This study demonstrates the flexibility of the system in AF research
Starting Page	7080
Ending Page	7082
File Size	280238
Page Count	3
File Format	PDF
ISBN	0780387414
DOI	10.1109/IEMBS.2005.1616137
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Medical treatment Atrial fibrillation Rhythm Surgery Electrophysiology Mechanical factors Radio frequency Surface treatment Animals Sequential analysis ablation Epicardial mapping atrial fibrillation mechanisms
Content Type	Text
Resource Type	Article

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