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Fig. 1A —75-year-old woman referred for peripheral CT angiography of
left leg because of decrease in walking distance to less than 50 m. Multipath
curved planar reformation from CT angiogram (16-MDCT scanner, 16 x 0.75
mm slice collimation, 85 mL of iomeprol) shows high-grade (90%) stenosis
(arrow) in left popliteal artery. Because of high degree of stenosis
of popliteal artery and clinical symptoms, percutaneous transluminal
angioplasty was indicated. Multiple insignificant stenoses in superficial
femoral artery and moderate stenosis of fibular artery are evident.