脑白质疏松是多种神经系统疾病表现的非特异性神经影像改变，我们通过对120例各种类型脑血管疾病患者及无脑血管病史的“正常”老人的影像资料研究，发现脑血管患者较非脑血管病者白质疏松的发生率高，尤其是脑出血及腔隙梗塞的患者更为常见。白质小动脉缺血导致神经胶质细胞变性和白质纤维髓鞘脱失是发生白质疏松的主要原因，它可能导致或加重智能障碍。 Leukoaraiosis is a nonspecific neuroimaging manifestation of a variety of neurological diseases. By studying the imaging data of 120 normal subjects with various types of cerebrovascular diseases and without history of cerebrovascular disease, we found that patients with cerebrovascular disease were more likely to be The incidence of white blood cells in patients with cerebrovascular disease is high, especially in patients with cerebral hemorrhage and lacunar infarction is more common. Ischemia of the white matter arterioles leads to degeneration of glial cells and demyelination of white matter fibers, which is the leading cause of leukoaraiosis, which can cause or worsen mental retardation.