Duplex ultrasound scanning defines operative strategies for patients with limb-threatening ischemia

摘要: Abstract Purpose: To characterize the accuracy of color-flow duplex ultrasound (DUS) in planning lower extremity revascularization procedures, we prospectively compared operations predicted by means DUS arterial scanning (DUSAS) and conventional angiography (CA) with actual performed 36 patients undergoing 40 vascular reconstructions for critical (grade II/III) ischemia. Methods: All were examined DUSAS followed CA. was from aorta to pedal vessels affected extremity. Adequacy inflow assessed, best distal target vessel continuous, unobstructed flow defined. An operative prediction made recorded based upon findings, a blinded fashion, subsequent The McNemar test comparing correlated proportions applied statistical significance difference ( P Results: Of performed, 83% correctly (95% CI; range, 77% 89%). Seven incorrectly DUSAS. 90% CA 81% 99%). Four determined that between correct not statistically significant = .50). Conclusions: With few exceptions, can be used reliably predict infrainguinal reconstruction strategies. Vessels defined as adequate are rarely unfit bypass. Prospective investigation solely is warranted. (J Vasc Surg 1998;28:482-91.)