长期以来,人们一直把全脑数字减影血管造影术(DSA)作为颅内动脉瘤术前诊断的金标准。但是DSA作为一个有创的检查,不仅耗时较长,而且可能引起颅内栓子脱落、脑血管痉挛等并发症,并造成0.5%的病人发生永久性神经功能缺陷。这些并发症一旦发生不但使动脉瘤病人雪上加霜,而且可能会 For a long time, whole-brain digital subtraction angiography (DSA) has been used as the gold standard for preoperative diagnosis of intracranial aneurysms. However, as an invasive procedure, DSA is not only time-consuming but may cause complications such as intracranial embolism and cerebral vasospasm and cause permanent neurological deficits in 0.5% of patients. Once these complications occur, not only aneurysm patients worse, and may