Figure 1.

Collection and processing of Ablation Index data. (A) The posterior line is nearing completion. The operator has moved from point 110 at the left side of the line to a point abutting the right pulmonary vein lesion set, giving a distance of 25 mm between consecutive lesions, although adjacent lesions are <6 mm apart. (B) Data are stored in the CARTO system for each lesion, including a timestamp for the start and end of each delivery and three‐dimensional coordinates for its position. (C) Exported data are analyzed, including calculation of the interval between lesions from the time‐stamps, and calculation of the distance between consecutive points by trigonometry.