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目的：为了进一步提高临床对自发性蛛网膜下腔出血（SAH）的治疗效果，分析和探讨64层螺旋 CT血管成像在自发性 SAH 中的应用价值。方法按照随机双盲的原则抽取2014年1月-2015年1月治疗的38例考虑自发性 SAH 的患者作为研究对象，所有入组的患者均常规给予64层螺旋 CT 血管成像（CTA）及数字减影脑血管造影（DSA）检查，其中 CT 血管成像均应用最大密度投影（MIP）、容积再现技术（VR），通过和 DSA 结果对比分析 CTA 在发现自发性 SAH 中的病因诊断中的应用价值和意义。结果以 DSA 诊断结果作为评价标准，CTA 的诊断结果准确率和 DSA 相比较，差异亦无统计学意义（P ﹥0.05）；而 CTA 组在诊断血管瘤大小方面和 DSA 诊断结果准确率和 DSA相比较示，差异无统计学意义（P ﹥0.05）。结论临床上在诊断自发性 SAH 的过程中应用64层螺旋 CT 血管成像，不仅简单、快捷和方便，而且有利于发现病因和提高诊断准确率，值得推广。“,”Objective To further improve the effectiveness of our hospital in terms of t spontaneous subarachnoid hemorrhage(SAH)and to reduce and prevent the occurrence probability of a variety of adverse events,analysis and discussion of the meaning and value of 64-slice CT angiography(CTA). Methods Selected 38 cases of patients with spontaneous sub-arachnoid hemorrhage(SAH)in our hospital from January 2014 to January 2015 according to the randomized double blind controlled principles as a study object,all patients with acute SAH underwent 64-slice CTA and digital subtraction angiography (DSA). Three-dimensional post-processing techniques including volume rendering( VR),maximum intensity projection (MIP),curved planar reformation(CPR)and multi-planar reconstruction(MPR)were underwent. Results Taking the DSA result as the standard,CTA diagnosis accuracy compared with DSA the difference between the two groups weren’t statistically significant(P ﹥ 0. 05). Conclusion It was showed that 64-slice CT angiography(CTA)on spontaneous subarachnoid hemor-rhage(SAH),which is not only simple、fast and convenient and can find the cause and improve the diagnostic accuracy,which is worthy of promotion and application.