RESULTS
A total of 23 different pacing sites were studied in 6 swine, corresponding to 11 sets of alternating sites (Table 1). For each pacing site, manual and automatically acquired maps were created (total 46 maps). A total of 40,176 matched map points (mean 1747±872 points per pacing site) and 97,912 matched vertices (mean 4257±905 vertices per pacing site) were compared. Figure 2 illustrates comparative manual and automatic maps. A high concordance between local activation times translated into qualitatively similar map appearances. Visual comparisons revealed identical localization of the pacing sites between manual and automated maps. Quantitatively, 91.2% of local activation times and 90.8% of mesh vertices showed consistency between the two maps as outlined in Table 1.