目的 探讨颈部血管彩超和MRI在 脑梗死患者颈动脉狭窄检测中的价值。 方法 回顾性分析我院2016年1月-2017年1 月收治的100例脑梗死患者临床，所有患 者先接受彩超检查，后接受MRI检查。结 果 血管彩超共检出119例颈部血管斑，其 中85%斑块多发生在颈总动脉分叉处，25% 发生与颈动脉起始端。腔隙性组6例，病 变血管13支；中小面积组78例，病变血管 31支；大面积组35例，病变血管12支。 三组血管彩超检查结果比较有差异(Z=﹣ 15.614，P=0.000)。MRI共检查出148支颈 动脉狭窄血管，其中腔隙性组18支，中 小面积组86支，大面积组41支。腔隙性 组病变血管9根，中小面积组89根，大面 积组41根。三组动脉狭窄率比较有差异 (P<0.05)。三组血管彩超检查结果比较有 差异(Z=﹣11.194，P=0.000)。结论 颈部 血管彩超和MRI均可检测脑梗死患者颈动 脉狭窄程度，预估脑梗死病情。MRI能较 好的判断斑块位置、大小、形态、性质， 提高脑梗死颈动脉狭窄检出率。

Objective To investigate the value of cervical vascular color Doppler ultrasound and MRI in detecting the carotid artery stenosis in patients with cerebral infarction. Methods The clinical data of 100 patients with cerebral infarction admitted from January 2016 to January 2017 in our hospital were retrospectively analyzed. All patients underwent color Doppler ultrasound examination firstly, then receiving MRI examination. Results A total of 119 cases of cervical vascular plaque were detected by color Doppler ultrasound, of which 85% occurred at the bifurcation of common carotid artery and 25% occurred at the beginning of carotid artery. There were 6 cases of lacunar cerebral infarction and 13 vessels in the lesion. The small size cerebral infarction occurred in 78 case, including 31 vessels in the lesion. The large size cerebral infarction occurred in 35 case, including 12 vessels in the lesion. The vascular ultrasound examination results of three groups had significant difference (Z=-15.614, P=0.000). A total of 148 cases of carotid artery stenosis were detected by MRI, of which 18 were lacunar cerebral infarction (9 vessels in the lesion), 86 cases were small and medium size cerebral infarction (89 vessels in the lesion), and 41 were large size cerebral infarction (41 vessels in the lesion). The artery stenosis rate of three groups had significant difference (P<0.05). The vascular color Doppler ultrasound examination results of three groups also had significant difference (Z=-11.194, P=0.000). Conclusion Both cervical vascular ultrasound and MRI can detect the degree of carotid stenosis in patients with cerebral infarction and predict the status of cerebral infarction. While the MRI can better determine the plaque location, size, shape of the carotid artery stenosis, which can improve the carotid artery stenosis detection rate.