Polak J F, Karmel M I, Mannick J A, O'Leary D H, Donaldson M C, Whittemore A D
Department of Radiology, Harvard Medical School, Boston, MA.
AJR Am J Roentgenol. 1990 Nov;155(5):1085-9. doi: 10.2214/ajr.155.5.2120939.
Color-assisted duplex sonography combines color Doppler flow imaging with duplex sonography to rapidly survey the vasculature. Color Doppler sonography displays the motion of flowing blood on a sonogram and is used to visualize directly arterial lumen narrowing of greater than 50%. Absence of Doppler signals signifies arterial occlusion. Preangiographic triage of patients for surgical or interventional therapy requires that a rapid and accurate survey be performed of the extent of arterial disease. Color-assisted duplex sonography was applied prospectively in 17 consecutive patients with the clinical diagnosis of peripheral arterial disease who had not previously undergone angiography. Results of angiography of the femoropopliteal arteries were graded and localized in one of seven approximately equal arterial segments. These were compared with similar segmental maps made with sonography. For the detection of stenosis or occlusion in any of the 238 segments, the sensitivity was 0.88 (49/56), specificity 0.95 (173/182), and accuracy 0.93 (222/238). The average time taken to survey both limbs was 29 min. We conclude that color-assisted duplex sonography is an accurate and rapid tool for the noninvasive mapping of the extent of femoropopliteal arterial disease.
彩色辅助双功超声检查将彩色多普勒血流成像与双功超声检查相结合，以快速检查血管系统。彩色多普勒超声检查在超声图上显示流动血液的运动，用于直接观察大于50%的动脉管腔狭窄。多普勒信号缺失表示动脉闭塞。在进行血管造影前对患者进行手术或介入治疗的分诊时，需要对动脉疾病的范围进行快速准确的检查。对17例临床诊断为外周动脉疾病且此前未接受过血管造影的连续患者进行了前瞻性彩色辅助双功超声检查。对股腘动脉的血管造影结果进行分级，并定位在七个大致相等的动脉节段之一。将这些结果与超声检查绘制的类似节段图进行比较。对于检测238个节段中的任何狭窄或闭塞，敏感性为0.88（49/56），特异性为0.95（173/182），准确性为0.93（222/238）。检查双下肢的平均时间为29分钟。我们得出结论，彩色辅助双功超声检查是一种准确、快速的工具，可用于无创性绘制股腘动脉疾病的范围。
