Patent ID: 8903478

Claim:
A method for annotating an electrocardiogram with an atrial fibrillation cycle length (AFCL) value that is displayable on a display of an electrophysiology system, comprising the steps of: (a) providing an electrocardiogram signal within the electrophysiology system; (b) accepting input to the electrophysiology system to define a time segment of interest within the electrocardiogram signal; (c) locating successive activation signals within the time segment of interest on each electrocardiogram signal; (d) determining one or more average AFCL values using the located successive activation signals and an AFCL statistic from the one or more average AFCL values; (e) associating on the display of the electrophysiology system at least one of the determined average AFCL values and the AFCL statistic together with the electrocardiogram signal; (f) depicting a rendering of a portion of at least one heart chamber; and (g) including the AFCL statistic in the rendering.