Figure 10c. Postoperative evaluation of graft patency in a 67-year-old man. (a) Coronal volume-rendered image shows normal postoperative position of the right (R) sided and left (L) sided saphenous vein grafts. (b) Axial volume-rendered image in a cephalocaudal orientation shows relationship of the left-sided saphenous vein (long arrow) to the sternum (short arrow). (c) Sagittal volume-rendered image shows position of the right-sided saphenous vein graft (arrow) to the sternum.