目的探讨颈部血管彩超与磁共 振(MRI)在诊断颈动脉狭窄中的应用价 值。方法 回顾性分析2016年1月-2018年 1月陕西省延安市博爱医院收治的86例缺 血性脑血管疾病患者的临床资料，行MRI 检查的40例患者纳入A组，行颈部血管 彩超检查的46例患者纳入B组，两组患者 均接受数字减影血管造影(DSA)检查。以 DSA检查结果为“金标准”，评价MRI与颈 部血管彩超对颈动脉狭窄的诊断价值， 并分析该疾病的影像学特点。结果 MRI 诊断颈动脉狭窄的灵敏度、特异度、准 确率：1级为93.33%、86.67%、90.67%， 2级为75.00%、94.92%、90.67%，3级 为90.91%、98.44%、97.33%，4级为 100%、100%、100%。颈部血管彩超诊断 颈动脉狭窄的灵敏度、特异度、准确 率：1级为92.16%、90.63%、91.57%，2 级为82.35%、92.43%、90.36%，3级为 83.33%、98.59%、96.39%，4级为100%、 100%、100%。结论 MRI与颈部血管彩超对 颈动脉狭窄的诊断准确性均较高，且差异 性不大，两种检查方法均有较高的临床应 用价值。

Objective To explore the application value of neck vascular color Doppler ultrasound and magnetic resonance imaging (MRI) in carotid artery stenosis. Methods The clinical data of 86 patients with ischemic cerebrovascular disease admitted to the Bo'ai Hospital of Yan'an from January 2016 to January 2018 were analyzed retrospectively. A total of 40 cases with MRI were included in group A, and 46 cases with neck vascular color Doppler ultrasound were included in group B. The two groups were accepted digital subtraction angiography (DSA) examination. The DSA test results were taken as "gold standard", and the diagnostic value of MRI and neck vascular color Doppler ultrasound on carotid artery stenosis was evaluated, and the imaging features of disease were analyzed. Results The sensitivity, specificity and accuracy of MRI detection for carotid artery stenosiswere 93.33%, 86.67% and 90.67% for grade 1, were 75.00%, 94.92% and 90.67% for grade 2, and were 90.91%, 98.44% and 97.33% for grade 3, and were 100%, 100% and 100% for grade 4. The sensitivity, specificity and accuracy of neck vascular color Doppler ultrasound examination for carotid artery stenosis were 92.16%, 90.63% and 91.57% for grade 1, and were 82.35%, 92.43% and 90.36% for grade 2, and were 83.33%, 98.59% and 96.39% for grade 3, and were 100%, 100% and 100% for grade 4. Conclusion Both of MRI and neck vascular color Doppler ultrasound have high diagnostic accuracy for carotid artery stenosis, and both of the two methods have high clinical application value.