Method and system for identifying cardiac arrhythmia driver sites

摘要

A method of identifying potential driver sites for cardiac arrhythmias includes acquiring a plurality of electrograms from a plurality of locations on at least a portion of a patient's heart. Using the acquired electrograms, at least one electrical activity map is generated. Desirable electrical activity maps include complex fractionated electrogram standard deviation and mean maps, dominant frequency maps, peak-to-peak voltage maps, and activation sequence maps. Using one or more of these maps (e.g., by analyzing one or more electrogram morphological characteristics represented by these maps), at least one potential driver site can be detected.

主权项

1. A method of identifying driver sites for cardiac arrhythmias, comprising:
acquiring a plurality of electrograms reflecting electrical activity occurring on at least a portion of a patient's heart; generating at least one electrical activity map from the plurality of electrograms, wherein the at least one electrical activity map represents at least one electrogram morphological characteristic; displaying a graphical representation of the at least one electrical activity map using a first display convention to depict the at least one electrogram morphological characteristic represented in the at least one electrical activity map; analyzing, using at least one processor, the at least one electrical activity map to identify at least one site for application of pacing on the at least a portion of the patient's heart, wherein the at least one electrogram morphological characteristic at the identified at least one site for application of pacing is indicative of driver activity; and annotating a location of the identified at least one site for application of pacing on the graphical representation of the at least one electrical activity map using a second display convention, wherein the at least one electrogram morphological characteristic at the identified at least one site for application of pacing comprises regular electrogram activity, and wherein the regular electrogram activity comprises a constant electrogram cycle length and a constant electrogram morphology.