Figure 1From: Life-threatening ventricular arrhythmia due to silent coronary artery spasm: usefulness of I-123 metaiodobenzylguanidine scintigraphy for detecting coronary artery spasm in the era of automated external defibrillators: a case reportElectrocardiogram obtained during the use of an automated external defibrillator. Ventricular fibrillation was detected, and defibrillation therapy was performed using an automated external defibrillator.Back to article page