Coronary angiography is the standard method of follow-up for patients with coronary artery bypass grafts, but it is an invasive and costly procedure that is not risk-free. Recently, 64-slice multidetector computed tomography has allowed reliable visualization of coronary artery grafts and their anastomotic status, with high spatial resolution. We describe a successful case of percutaneous coronary intervention for occluded coronary artery bypass grafts with the aid of multidetector computed tomography.