Figure 15. Evaluation of a saphenous vein graft in a 70-year-old man with multiple prior revascularizations for coronary artery disease. The previous reoperative surgery had used an end-to-side descending aorta-saphenous vein graft to anastomose to a proximally occluded saphenous vein graft. Because of possible risk of embolization from cardiac catheterization, a CT evaluation was requested. Sagittal reformatted image shows the patent end-to-side saphenous vein graft from the descending aorta to the existing saphenous vein-circumflex graft (arrows). No catheterization was performed and no surgical intervention was necessary.