目的 研究比较CT和MRI对急性 脑梗塞的早期诊断临床价值，为临床治 疗提供参照。方法 选择对照研究的方式 对内科收集治疗的65例急性脑梗塞患者 进行比较，所有患者均在发病后6h内行 颅脑CT和MRI检查，以对病情作出判断， 对比两种诊断方式的优劣。结果 CT检查 确诊率为69.23%，在CT基础上联合MRI检 查确诊率为96.92%，二者比较差异明显 （P＜0.05）。两种检查方式检出病灶位 置为脑叶、基底节及小脑，MRI可检查 出脑干梗塞，但CT未检出。两种检查方 式检出病灶直径比较，P＜0.05，差异显 著。结论 急性脑梗塞早期采用MRI进行 诊断能够清晰显示发病部位、形态及大 小，有利于临床对疾病作出早期诊断； 联合CT诊断具有较高的诊断准确率，具 有广阔的临床应用前景。

Objective This paper is to investigate and compare clinical value of CT and MRI in early diagnosis of acute cerebral infarction and to provide the reference for clinical treatment. Methods Sixty five patients admitted by the Department of Internal Medicine in the manner of controlled study were compared, all patients were subject to craniocerebral CT and MRI examination in 6 hours after attacks of diseases to determine conditions of disease, and advantages and disadvantages of two diagnostic modewere compared. Results The diagnosis rate of CT examination was 69.23%,and that of combined MRI on the basis of CT was 96.92%, thedifference was significant when two methods were compared (P<0.05). The detected lesion locations of two examination modes were the lobe, basal ganglia and cerebellum, MRI could detect brainstem infarction, but CT failed to detected it. The comparison in the diameter of detected lesion via two examination method satisfied P＜0.05, and the difference was significant. Conclusion MRI diagnosis applied in early acute cerebral infarction can clearly display the position, shape and size, being conductive to clinically early diagnosis on disease. Combined CT diagnosis is of high diagnosis accuracy and wide prospect of clinical applications