Winter-Warnars H A, van der Graaf Y
Department of Radiology, University Hospital Utrecht, P.O. Box 85500, NL-3508 GA Utrecht, The Netherlands.
Cardiovasc Intervent Radiol. 1996 Jul-Aug;19(4):234-8.
Comparison of the relative values of the ankle-arm index (AAI) at rest and after exercise, angiography, and duplex ultrasonography for the follow-up of percutaneous transluminal angioplasty (PTA) in patients with peripheral vascular disease.
Thirty-two patients were prospectively followed after technically and clinically successful PTA of a femoropopliteal occlusion. The patency of the femoropopliteal artery was assessed for 1 year using AAI measurements at rest and after exercise; duplex ultrasonography at 4, 12, 24, 36, and 52 weeks; and angiography at 3 and 12 months after PTA.
Patency was highly dependent on the measurement technique. The cumulative patency after 1 year determined with the AAI at rest and during exercise, by angiography, and by duplex ultrasonography was 74%, 19%, 31%, and 32%, respectively. Seventy-five percent of the restenoses occurred at the site of the treated occlusion.
Duplex ultrasonography is most suitable for this assessment, as it causes no patient discomfort and the specificity is better than AAI after exercise because vascular disease in other, proximal segments does not interfere with the results.
比较静息及运动后踝臂指数（AAI）、血管造影和双功超声检查在外周血管疾病患者经皮腔内血管成形术（PTA）随访中的相对价值。
对32例股腘动脉闭塞症患者行PTA，技术和临床均成功后进行前瞻性随访。采用静息及运动后AAI测量、在第4、12、24、36和52周行双功超声检查以及在PTA后3个月和12个月行血管造影，对股腘动脉通畅情况评估1年。
通畅情况高度依赖测量技术。静息及运动后AAI、血管造影和双功超声检查确定的1年后累积通畅率分别为74%、19%、31%和32%。75%的再狭窄发生在治疗闭塞部位。
双功超声检查最适合此项评估，因为它不会给患者带来不适，且特异性优于运动后的AAI，因为其他近端节段的血管疾病不会干扰结果。
