Figure 4.

Cycle partitioning results for Experiment 2: Patchy data quality and ectopic pacemaker. The REGROUPS-derived AT maps (d) show a similar, but slightly larger, extent in spatial coverage relative to the manual maps (b). The WM result (e and f) was comparable in terms of spatial coverage to the manual AT maps for most cycles (1, 2, 4, and 5). WM clustering for cycle 3 terminated prematurely leading to reduced coverage. Isochrones for most cycles (1, 2, 3, and 5) are drawn inaccurately in the proximal and distal regions due to misclustering