High-resolution, live, directional mapping
D. Curtis Deno, Abhishek Bhaskaran, Dennis J. Morgan, Fikri Goksu, Katherine Batman, Gregory Olson, Karl Magtibay, Sachin Nayyar, Andreu Porta‐Sánchez, Michael A. Laflamme, Stéphane Massé, Prashant Aukhojee, Krishnakumar Nair, Kumaraswamy Nanthakumar
Abstract
Conventional arrhythmia mapping involves building activation maps from numerous catheter placements and sequential acquisitions during a stable rhythm. Multielectrode high-density (HD) catheters have enabled comprehensive and dense maps of electrogram (EGM) amplitude and timing. Despite automated algorithms, activation mapping still involves time annotation, numerous acquisitions, and reannotation—often beyond the ability of an electrophysiologist to verify during mapping. Additionally, conventional activation mapping may involve using all or most of the cardiac chamber to locate the source of arrhythmia.