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Figure 2 Electroanatomic maps for all 12 patients are shown. For each patient, the left image (a or c) is the stimulus to QRS interval (S-QRS) map, with S-QRS <40 ms color-coded as red and S-QRS >80 ms shown as purple. The right hand image (b or d) shows the voltage map for each patient in the same projection as the S-QRS map. Voltage <1 mV is color-coded in red and voltage >3 mV is color-coded purple. The 14 target regions are indicated by white circles. Patient 12 had two target regions and maps are shown in two different views (a and c are S-QRS maps; b and d are voltage maps). An area of S-QRS delay overlaps each of the target areas with the exception of Patient 4. Projections were selected to show the target areas: AP tilt = anterior tilted upward; LAO = left anterior oblique; PA = posterior; RL tilt = right lateral tilted rightward; RPO = right posterior oblique. Each background square represents 2 cm2.
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