High density atrial fibrillation cycle length (AFCL) detection and mapping system
First Claim
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1. 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.
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Abstract
Systems and methods to assist in locating the focus of an atrial fibrillation include the association of atrial fibrillation cycle length values and statistics relating thereto with temporal locations on an electrogram of a given electrode, and/or the coordination of electrode locations with respective the spectral analyses of electrogram signals and further parameters and statistics relating thereto. Ablation therapy can proceed under guidance of such information.
21 Citations
30 Claims
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1. 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:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. 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:
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(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 determining 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 together with the electrocardiogram signal; and (f) depicting a rendering of a portion of at least one heart chamber, and including the AFCL statistic in the rendering. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification