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目的：本文旨在研究ＭＲＩ、ＣＴ对早期脑动脉硬化诊断价值。材料和方法：对７０例早期脑动脉硬化的患者进行ＭＲＩ、ＣＴ检查。结果：６２例ＭＲＩ检查阳性，Ｔ２ＷＩ发现斑点状高信号２８０个，其中额叶１２１个（４３．２％），顶叶２０个（７．１％），基底节７５个（２６．８％），丘脑２６个（９．３％），脑干１５个（５Ａ％），其它部位２４个（８．６％）。ＣＴ对早期脑动脉硬化的敏感性为１２．５％，定性诊断准确率为９４．３％。ＭＲＩ则分别为１００％和９６．４％，ＭＲＩ对微小病变的显示较ＣＴ更优越。结论：ＭＲＩ应作为早期脑动脉硬化的首选检查方法。
Objective: This article aims to study MRI, CT diagnosis of early cerebral arteriosclerosis. Materials and Methods: MRI and CT were performed in 70 patients with early stage cerebral arteriosclerosis. Results: There were 280 positive MRI findings in T2WI. There were 280 speckled hyperintensities in T2WI, including 121 (43.2%) frontal lobes, 20 (7.1%) parietal lobes and 75 basal ganglia (26.8% , 26 (9.3%) of the thalamus, 15 (5A%) of the brainstem, and 24 (8.6%) of the other sites. The sensitivity of CT to early cerebral arteriosclerosis was 12.5%, and the diagnostic accuracy of qualitative diagnosis was 94.3%. MRI was 100% and 96.4% respectively, and MRI showed more superiority to minimal change than CT. Conclusion: MRI should be the first choice for early detection of cerebral arteriosclerosis.