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Fig. 5B. —78-year-old man with stent in right iliac artery who underwent MDCT and digital subtraction angiography. Digital subtraction angiogram (A) and maximum-intensity-projection image (B) both show short segment of severe stenosis in right superficial femoral artery (thin straight arrow), long segment of occlusion in left femoral artery (curved arrows), and occlusion of bilateral anterior tibial arteries (arrowheads). However, patency of stent-graft (thick straight arrow, A) is visualized only on angiogram; maximum-intensity-projection image does not provide any information concerning in-stent status (thick straight arrow, B). Review of cross-sectional images revealed in-stent patency.