Coronary computed tomography angiography after 1 year of coronary artery bypass graft. (A) Left main and left anterior descending artery stent occlusion; (B) left circumflex (LCX) proximal segment occlusion; (C) right coronary artery ostial stent was not stenosed. (D) Left internal mammary artery was not stenosed. (E) Aorta (AO)-saphenous vein graft-LCX was not stenosed. (F) Proximal AO-saphenous vein graft-OM anastomosis was stenosed.