Abbreviations
AF = atrial fibrillation
AT = atrial tachycardia
BNP = brain natriuretic peptide
CE-MRA = contrast enhancement magnetic resonance angiography
FFE = fast field echo
LA = left atrium
LAA = left atrium appendage
LAD = left atrial diameter
LVEF = left ventricular ejection fraction
LGE MRI = late-gadolinium enhancement magnetic resonance imaging
PLS = patchy late-gadolinium enhancement site
PV = pulmonary vein
PVI = pulmonary vein isolation
RFCA = radiofrequency catheter ablation
SM = substrate modification