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. 2020 Feb 14;6(2):51–59. doi: 10.1016/j.hrcr.2019.09.006

Figure 6.

Figure 6

Pace mapping to identify and validate clinical ventricular tachycardia (VT) isthmus. Example of an epicardial VT ablation with the Precision system (Abbott, St. Paul, MN) and HD Grid multipolar catheter in an arrhythmogenic right ventricular cardiomyopathy/dysplasia patient. This is a very nice example of bad to good pace map transition within the critical isthmus, which was identified by activation mapping, from 32% correlation from the channel entrance to a quasi-perfect 99% correlation from the channel exit.