[Non-contact mapping of the left atrium using a multi electrode mapping array].
In contrast to the sequential mapping systems such as the conventional and the electroanatomic mapping, the non-contact mapping provides simultaneous mapping. The non-contact-mapping system detects far-field endocardial potentials from a multielectrode-array catheter and reconstructs over 3,000 unipolar virtual electrograms. Based on the virtual electrograms, the system produces an instantaneous three-dimensional (3-D) isopotential map. High-density mapping of the endocardial activation sequence allows immediate and simultaneous identification of a propagation vector along the line and the identification of an arrhythmogenic focus on a single beat. The methods and results of different ablation strategies for atrial fibrillation using the non-contact-mapping system are reported.
Seidl
Karlheinz
K
Herzzentrum, Ludwigshafen. Seidlk@klilu.de
Becker
Torsten
T
Senges
Jochen
J
D001281:Atrial Fibrillation / Q000503:physiopathology* / Q000601:surgery*; D018780:Body Surface Potential Mapping / Q000379:methods*; D017115:Catheter Ablation; D002404:Catheterization; D004566:Electrodes; D022062:Electrophysiologic Techniques, Cardiac; D006325:Heart Atria / Q000503:physiopathology*; D006801:Humans; D021621:Imaging, Three-Dimensional; D011183:Postoperative Complications; D011667:Pulmonary Veins / Q000503:physiopathology*; D012008:Recurrence