随着社会的进步和发展,脑血管疾病的发病率、死亡率日渐趋高,已成为人类健康的大敌。后循环缺血(posterior circulation ischemia,PCI)是常见的缺血性脑血管病,约占缺血性脑血管病的20%。目前普遍认为PCI是指发生于椎基底动脉系统的TIA与脑梗死。后循环供应大脑的颞叶内侧与枕 With the progress and development of society, the morbidity and mortality of cerebrovascular diseases have become increasingly high, which has become the enemy of human health. Posterior circulation ischemia (PCI) is a common ischemic cerebrovascular disease, accounting for about 20% of ischemic cerebrovascular disease. PCI is now generally considered to occur in the vertebrobasilar system of TIA and cerebral infarction. Posterior circulation supplies the medial temporal lobe of the brain with the pillow