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目的探讨Ｍｏｙａｍｏｙａ病（ＭＭＤ）患者的ＣＴ与ＤＳＡ诊断价值。方法回顾性分析２６例ＭＭＤ患者的ＣＴ及ＤＳＡ表现。结果１０例表现为脑梗塞，集中在额、顶、颞及基底节区点片状低密度灶；１６例表现为脑出血（脑室出血９例、蛛网膜下腔出血４例、脑内血肿３例）。２６例ＤＳＡ均具有颈内动脉系统狭窄和闭塞、基底节附近有异常毛细血管网。结论ＭＭＤ的诊断主要依靠ＤＳＡ检查，ＣＴ不能诊断ＭＭＤ，但可显示继发出血、梗塞和软化，并间接提示ＭＭＤ，故诊断ＭＭＤ时ＣＴ及ＤＳＡ可相辅相成。
Objective To investigate the diagnostic value of CT and DSA in Moyamoya disease (MMD). Methods The CT and DSA findings of 26 MMD patients were retrospectively analyzed. Results 10 cases manifested as cerebral infarction, focus on the frontal, top, temporal and basal ganglia patchy low density lesions; 16 cases showed cerebral hemorrhage (ventricular hemorrhage in 9 cases, 4 cases of subarachnoid hemorrhage, intracerebral hematoma 3 example). Twenty-six DSA had stenosis and occlusion of the internal carotid artery, and abnormal capillary network near the basal ganglia. Conclusion The diagnosis of MMD mainly depends on DSA. CT can not diagnose MMD but it can show secondary hemorrhage, infarction and softening, and indirectly prompt MMD. Therefore CT and DSA can complement each other when diagnosing MMD.