London N J, Nydahl S, Hartshorne T, Fishwick G
Department of Vascular Surgery, Leicester University, UK.
Br J Surg. 1999 Jul;86(7):911-5. doi: 10.1046/j.1365-2168.1999.01180.x.
The purpose of this study was to investigate whether colour duplex imaging alone could safely and effectively be used to diagnose lower limb arterial lesions and guide subsequent percutaneous transluminal angioplasty (PTA).
Patients with discrete lower limb arterial lesions, preferably stenoses, which could be visualized clearly by colour duplex imaging were selected for duplex-guided PTA. Duplex-guided PTA was performed in an operating theatre using conventional balloon catheters.
Duplex imaging was used to diagnose and guide PTA of 55 arterial lesions in 50 legs of 45 patients. There were 53 stenoses and two occlusions. The median (range) ankle : brachial pressure index was 0. 86 (0.52-1.10) before dilatation and 1.00 (0.83-1.40) immediately after dilatation (P = 0.0001). There were no complications during or after any of the procedures and 46 of the 47 symptomatic legs were markedly improved at a median follow-up of 23 days. Radiographic imaging was not required for any of the procedures.
It is possible to diagnose and angioplasty lower limb arterial lesions using colour duplex imaging alone.
本研究旨在调查单纯彩色双功超声成像能否安全有效地用于诊断下肢动脉病变并指导后续的经皮腔内血管成形术（PTA）。
选择下肢动脉存在离散性病变（最好为狭窄）且能通过彩色双功超声成像清晰显示的患者进行双功超声引导下的PTA。双功超声引导下的PTA在手术室使用传统球囊导管进行。
彩色双功超声成像用于诊断并指导了45例患者50条腿上的55处动脉病变的PTA。其中有53处狭窄和2处闭塞。扩张前踝肱压力指数的中位数（范围）为0.86（0.52 - 1.10），扩张后即刻为1.00（0.83 - 1.40）（P = 0.0001）。所有手术过程中及术后均无并发症发生，47条有症状的腿中，46条在中位随访23天时明显改善。所有手术均无需进行放射成像。
仅使用彩色双功超声成像即可诊断下肢动脉病变并进行血管成形术。
