(A)—Axial, (B)—coronal, and (C)—sagittal three-dimensional LGE-CMR image planes showing major anatomic associations with the left atrium. Ao, aorta; Br, bronchus; CMR, cardiac magnetic resonance; CS, coronary sinus; Eo, Esophagus; LA, left atrium; LGE, late gadolinium enhancement; LV, left ventricle; PA, right main pulmonary artery; RA, right atrium; RIPV, right inferior pulmonary vein; RSPV, right superior pulmonary vein.