Ramaswami G, Al-Kutoubi A, Nicolaides A N, Dhanjil S, Griffin M, Belcaro G, Coen L D
Irvine laboratory for Cardiovascular Research, Academic Surgical Unit, Imperial College School of Medicine at St. Mary's Hospital, London, UK.
Ann Vasc Surg. 1999 Sep;13(5):494-500. doi: 10.1007/s100169900289.
Color flow duplex imaging of the iliac and femoropopliteal arteries was performed in patients undergoing angiography. The aim of the study was to determine: (1) in what percentage of patients could the iliac arteries be adequately visualized to enable a diagnosis, (2) the overall accuracy of duplex scanning in the diagnosis of arterial disease, and (3) whether there is a useful duplex criterion for the selection of patients for angioplasty. One hundred and twenty patients (79 males, 41 females; mean age 64.4 years) had duplex scans prior to angiography (2-7 days) and the results were compared. The duplex criteria of an increase in the peak systolic velocity ratio (PSVR) >2 and lesions <5 cm were used to signify hemodynamically significant stenosis (>50% narrowing), the presence of plaque and calcification in the arterial wall with alteration of PSVR and lesions >5 cm, diffuse disease, and the absence of flow on color/Doppler interrogation, occlusion. The results show that duplex scanning is a useful screening tool and may be effectively used to diagnose iliac and femoropopliteal disease in nearly 80% of patients. Angiography will be needed in those in whom duplex scanning is inconclusive, or, prior to intervention in those with disease suitable for surgical reconstruction or angioplasty, diagnosed on the basis of duplex scans.
对接受血管造影的患者进行了髂动脉和股腘动脉的彩色血流双功成像。本研究的目的是确定：（1）能充分显示髂动脉以进行诊断的患者百分比；（2）双功扫描诊断动脉疾病的总体准确性；（3）是否存在用于选择血管成形术患者的有用双功标准。120例患者（79例男性，41例女性；平均年龄64.4岁）在血管造影前（2 - 7天）进行了双功扫描，并对结果进行了比较。收缩期峰值速度比（PSVR）增加>2且病变<5 cm的双功标准用于表示血流动力学显著狭窄（狭窄>50%）、动脉壁存在斑块和钙化且PSVR改变以及病变>5 cm、弥漫性疾病，以及彩色/多普勒检查无血流、闭塞。结果表明，双功扫描是一种有用的筛查工具，可有效用于诊断近80%患者的髂动脉和股腘动脉疾病。对于双功扫描结果不确定的患者，或在对适合手术重建或血管成形术的疾病患者进行干预之前，根据双功扫描诊断，需要进行血管造影。
