目的探讨双排螺旋CT与0.3T MRI用于脑梗塞早期的临床诊断效果， 评价其应用价值。方法 选取2013年3 月-2015年3月我院神经内科收治的64例脑 梗塞患者，在发病6h以内按诊断方法不同 定义为对照组(32例，双排螺旋CT)，观察 组(32例，0.3T MRI)，对比两组患者的诊 断准确率、病灶阳性检出率及影像学表 现。结果 观察组患者诊断准确率(96.9%) 与对照组(68.8%)相比，P＜0.05，差异显 著；两组患者的基底节、内囊、额叶、 顶叶、脑干、丘脑、小脑等病灶阳性检 出率比较χ2 分别为5.02、3.95、34.71、 4.16、4.13、3.99、4.57，P＜0.05，差 异有统计学意义；MRI图像清晰度、分辨 率优于CT图像。结论 较CT比较，MRI诊断 早期脑梗塞具敏感性强、分辨率高、图像 清晰等优点，可提高诊断准确率和病灶阳 性检查率，利于患者及时治疗，具有较高 临床应用价值。

Objective To explore the efficacy of double-slice helical CT and 0.3 T MRI applied in clinical diagnosis on early cerebral infarction and to evaluate its application value. Methods Sixty four patients with cerebral infarction admitted by the department of neurology of the Hospital from March, 2013 to March, 2015 were selected, who were defined into the control group (32 cases, double-slice helical CT) and the observation group (32 cases, 0.3 T MRI) within 6 hours of the onset according to different diagnostic methods. Positive detection rate and diagnosis accuracy, lesions imaging manifestations of patients in two groups were compared. Results The diagnosis accuracy (96.9%) on patients in the observation group satisfied P<0.05 when compared to that of patients in the control group (68.8%), and the difference was significant. The comparison in positive detection rate of basal ganglia, internal capsule, frontal, parietal lobe, brain stem and thalamus and cerebellar lesionχ2 satisfied 5.02, 3.95, 34.71, 4.16, 4.13, 3.99 and 4.13 (P<0.05), the differences were statistically significant. The resolution of MRI image was better than that of CT image. Conclusions MRI diagnosis on early cerebral infarction deliver advantages including strong sensitivity, high resolution and clear image, improve diagnostic accuracy and positive rate of examination on lesions, which facilitate timely treatment of patients and impose high clinical value.