Objective: To evaluate the effects of early treatment with Edaravone and the value of multislice spiral CT angiography(MSCTA) in the etiological diagnosis of Spontaneous Subarachnoid Hemorrhage(SAH).

• 目的评价应用依达拉奉治疗及早期多层螺旋CT血管造影(MSCTA)对蛛网膜下腔出血(SAH)病因诊断的价值。