Mapping electrophysiological data in a heart chamber

摘要

A method of acquiring and mapping electrophysiological data in a heart chamber includes inserting a catheter having an electrode into the heart chamber. Electrophysiological data in the heart chamber is acquired with the electrode, and the position of the electrode is determined by using an electromagnetic field source external to the heart chamber. A geometrical representation of at least a portion of the heart chamber is created, and a three-dimensional map of the electrophysiological data is created and superimposed on the geometrical representation.