烟雾病(moyamoya diease,MMD)是一种原发慢性进行性双侧颈内动脉末端、大脑中动脉近端及大脑前动脉近端的狭窄或闭塞,同时伴随脑底异常增生的侧支血管网所致的脑出血性或缺血性疾病。最早由日本学者发现,因其神经系统症状和体征无明显的特异性,临床多易误诊。DSA的问世大大提高 Moyamoya diease (MMD) is a kind of stenosis or occlusion of the primary chronic progressive bilateral internal carotid artery, the proximal middle cerebral artery and the proximal cerebral anterior cerebral artery, and the collateral blood vessel network Caused by cerebral hemorrhagic or ischemic disease. The earliest by Japanese scholars found that because of their nervous system symptoms and signs no obvious specificity, clinical more easily misdiagnosed. The advent of DSA has greatly improved