Doorly T P, Atkinson P I, Kingston V, Shanik D G
J Cardiovasc Surg (Torino). 1982 May-Jun;23(3):243-6.
In a one year period, 400 patients were examined by carotid ultrasonic arteriography combined with real time sound spectral analysis. Contrast arteriography was performed on 112 patients. The noninvasive examinations and contrast arteriograms of these patients were reviewed by two independent observers, who were unaware of the findings of the other diagnostic modality. There were 190 vessels available for comparison. The internal carotid artery was classified as normal, less than 50% stenosis, greater than or equal to 50% stenosis, or occluded. The specificity of these non-invasive tests was 79%. The sensitivity in correctly identifying stenoses as less than 50% or greater than or equal to 50 was 85% and 91% respectively. The sensitivity in identifying occluded vessels was 90%. The positive and negative predictive values were 87% and 92% respectively. Noninvasive evaluation correctly identified six lesions misdiagnosed by arteriography. We found pulsed Doppler arteriography combined with real time spectral analysis to be an accurate, direct, noninvasive method of assessing the extracranial carotid arteries.
在一年时间里，对400例患者进行了颈动脉超声动脉造影结合实时声谱分析检查。对112例患者进行了造影动脉造影。两名独立观察者对这些患者的无创检查和造影动脉造影片进行了回顾，他们不知道另一种诊断方法的结果。有190条血管可供比较。颈内动脉被分为正常、狭窄小于50%、狭窄大于或等于50%或闭塞。这些无创检查的特异性为79%。正确识别狭窄小于50%或大于或等于50%的敏感性分别为85%和91%。识别闭塞血管的敏感性为90%。阳性和阴性预测值分别为87%和92%。无创评估正确识别了6例假动脉造影误诊的病变。我们发现脉冲多普勒动脉造影结合实时频谱分析是一种准确、直接、无创的评估颅外颈动脉的方法。
