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目的：研究蛛网膜下腔出血( SAH)量、部位与脑血管痉挛程度的相关性。方法：病例为沈阳军区总医院神经内科从2013年6月~2014年1月间以蛛网膜下腔出血入院患者71例,全部患者均在发病48h内经头颅CT证实确诊为蛛网膜下腔出血后进一步经CTA、 DSA证实为颅内动脉瘤破裂所致。我们通过蛛网膜下腔出血的量、部位通过Fisher分级比较。结果：全部蛛网膜下腔出血的患者中,42位患者经CTA或DSA没有发生脑血管痉挛(为无血管痉挛组),有9人存在脑血管痉挛但未发生神经系统缺损症状(无症状脑血管痉挛组),有20人确定存在脑血管痉挛且出现神经系统缺损症状(症状性脑血管痉挛组)。症状性脑血管痉挛组与无症状的脑血管痉挛组相比,蛛网膜下腔出血的量与部位相比有统计学意义(P<0．005)。结论：提示脑血管痉挛的程度与蛛网膜下腔出血的量及位置相关。“,”OBJECTIVE: To study the relationship between subarchnoid hemorrhage volume and cerebral vasospasm. METH-ODS: 71 Hospitalized patients with subarachnoid hemorrhage were diagnosised by computed tomography ( CT) within 48 hours and ruptured intracranial aneurysm was comfirmed furtherly by CT Angiogram ( CTA ) and digital substration angiojraphy ( DSA ) . The parts and amount of subarachnoid hemorrhage were compared through the fish classifieation. RESULTS: 42 Patients did not have cere-bral vasospasm (group 1). 9 Patients had cerebral vasospasm but didn’ t have the symptoms of nervous system abnormalities (group 2). 20 Patients had cerebral vasospasm and nervoes system abnormalities (group 3). There was statistically significant different in the parts and volume of subarachnoid hemorrhage between group 3 and group 2 (P<0. 05). CONCLUSION: The dagree of cerebral vasospasm is associated with the parts and volume of subarachnoid hemorrhage.