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BackgroundMagnetic resonance imaging (MRI) can visualize locations of both the ablation scar on the left atrium (LA) after atrial fibrillation (AF) ablation and epicardial fat pads (FPs) containing ganglionated plexi (GP).
MethodsWe investigated 60 patients who underwent pulmonary vein antrum (PVA) isolation along with LA posterior wall and septal debulking for AF. FPs around the LA surface in well‐known GP areas (which were considered as the substitution of GP areas around the LA) were segmented from the dark‐blood MRI. Then the FP and the ablation scar image visualized by late gadolinium enhancement (LGE)‐MRI on the LA were merged together. Overlapping areas of FP and the ablation scar image were considered as the ablated FP areas containing GP. Patients underwent 24‐hour Holter monitoring after ablation for the analysis of heart rate variability...
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