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. Author manuscript; available in PMC: 2018 Jan 24.
Published in final edited form as: J Am Coll Cardiol. 2017 Jan 24;69(3):303–321. doi: 10.1016/j.jacc.2016.10.065

Figure 6. Signal Analysis.

Figure 6

Panel A: Pie chart of the surface area of fractionated electrograms tagged with the CARTO algorithm (auto-CFAEs) in dispersion (red) and non-dispersion (blue) regions. CFAEs: complex fractionated atrial electrograms.

Panels B–G: Off-line analysis of electrograms from dispersion areas and from non-dispersed regions; comparison between dispersion areas (red), dispersion areas at which AF terminated (red, shaded T) and non-dispersed regions (blue). Panel E: Cycle length. Panel F: Voltage amplitude Panel G: Rotations. Panel H: Presence of continuous CFAEs. Panel I: Duration spatio-temporal dispersion/2.5 sec. Panel J: Ratio spatio-temporal dispersion/AFCL. Mean + SE; *: p<0.05; ***: P<0.01; +++ p: <0.05 (Kruskal-Wallis), n = 20 patients; n = 68 and n = 35 dispersion areas and non-dispersed regions, respectively.