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目的探讨彩色多普勒超声(CDFI)对颈动脉狭窄、闭塞的诊断价值。方法对112例缺血性脑血管病患者行CDFI检查判定颈动脉狭窄的程度,并与DSA检查结果相比较。结果以DSA检查结果为金标准,CDFI检测颈动脉狭窄、闭塞的灵敏度为88.5%,特异度为94.7%,阳性预测值为95.8%,阴性预测值为85.6%。CDFI检查结果中,判定2条颈动脉轻度狭窄、1条颈动脉中度狭窄、1条颈动脉重度狭窄及1条颈动脉完全闭塞与DSA检查结果不符,CDFI检出颈动脉轻度狭窄、中度狭窄、重度狭窄、完全闭塞的准确率为70.0%、90.2%、94.1%、88.9%。结论 CDFI检查能较为准确地评估颈动脉的狭窄程度,可为临床提供可靠的诊断依据。
Objective To investigate the diagnostic value of color Doppler ultrasonography (CDFI) on carotid stenosis and occlusion. Methods 112 patients with ischemic cerebrovascular disease underwent CDFI examination to determine the degree of carotid artery stenosis, and compared with the DSA test results. Results The DSA test was the gold standard. CDFI detected carotid artery stenosis and occlusion with a sensitivity of 88.5%, a specificity of 94.7%, a positive predictive value of 95.8% and a negative predictive value of 85.6%. In the CDFI examination results, mild carotid stenosis, moderate carotid stenosis, severe carotid stenosis and complete carotid artery occlusion in two carotid arteries were found to be inconsistent with DSA findings. Carotid artery stenosis was detected by CDFI, The accuracy of moderate stenosis, severe stenosis and complete occlusion were 70.0%, 90.2%, 94.1%, 88.9%. Conclusion CDFI can accurately assess the degree of carotid stenosis, which can provide a reliable basis for clinical diagnosis.