Roederer G O, Langlois Y, Chan A T, Breslau P, Phillips D J, Beach K W, Chikos P M, Strandness D E
Ultrasound Med Biol. 1983 Jan-Feb;9(1):73-8. doi: 10.1016/0301-5629(83)90111-4.
The results of ultrasonic duplex scanning combined with spectral analysis are compared with the results of contrast angiography in patients after endarterectomy in which recurrence of carotid arterial disease was suspected. Thirty-six patients underwent a duplex scan study within 3 months of their post-operative angiogram, performed at their physician's discretion (44 studies). The overall accuracy of the method was 80%. Our ability to predict a greater than 50% diameter reduction along with total occlusion was 94%. The measure of agreement corrected for chance between arteriography and duplex scanning as expressed by the Kappa statistic was 0.675 +/- SE (K) 0.096. This level of agreement compared favorably to that of inter- and intra-observer variability in reading cerebral angiograms. The accuracy reported justifies the clinical use of ultrasonic duplex scanning in the detection of recurrent stenosis after carotid endarterectomy.
在怀疑有颈动脉疾病复发的动脉内膜切除术后患者中，将超声双功扫描结合频谱分析的结果与血管造影结果进行比较。36例患者在术后血管造影的3个月内接受了双功扫描研究，血管造影由医生酌情进行（共44项研究）。该方法的总体准确率为80%。我们预测直径减少超过50%以及完全闭塞的能力为94%。用Kappa统计量表示的血管造影和双功扫描之间校正了机遇因素后的一致性测量值为0.675±标准误（K）0.096。这种一致性水平与观察者间和观察者内解读脑血管造影的变异性相比具有优势。所报告的准确率证明了超声双功扫描在检测颈动脉内膜切除术后复发狭窄方面的临床应用价值。
