Abstract
A 76-year-old man with a history of healed inferior myocardial infarction was admitted to our hospital for catheter ablation of ventricular tachycardia (VT) causing disabling palpitation. The 12-lead electrocardiogram (ECG) recorded during VT showed a QRS with right bundle branch block morphology and right axis deviation, consistent with an anterolateral left ventricular (LV) origin (Fig. 1A). Cardiac computed tomographic (CT) scans were obtained 1 day before the procedure, using a LightSpeed VCT 64-slice mul-
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