Objective To explore the dynamic changes of regional cerebral blood flow(rCBF) and blood brain barrier(BBB) in rats with experimental subarachnoid hemorrhage(SAH), and the effects of Nimodipine.

• 目的 探讨大鼠蛛网膜下腔出血 (SAH)后局部脑血流 (rCBF)与血脑屏障 (BBB)超微结构的动态变化规律和尼莫地平 (Nim)的作用特点。