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. 2021 Oct 6;10(20):e022217. doi: 10.1161/JAHA.121.022217

Figure 5. Localization of an epicardial ventricular tachycardia (VT) exit site by the automatic arrhythmia‐origin localization system.

Figure 5

A, Recorded 12‐lead ECG of an induced epicardial VT during the procedure for patient #22. B, Epicardial electroanatomic mapping bipolar potential map of the left ventricle for this patient, with the VT exit site (identified by contact mapping) depicted by the yellow star. C, The automatic arrhythmia‐origin localization system was used to predict a VT exit site marked in the blue patch on the apical inferolateral left ventricular wall of the epicardial electroanatomic mapping geometry when using all recorded 9 pacing sites of the VT, having a localization error of 8.2 mm in comparison with the actual VT exit site indicated by the red star.