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目的 探讨颅内动脉瘤的影像学表现及其不同检查方法的作用，为脑外科和介入治疗提供更多的信息。材料和方法 ２２例动脉瘤患者，全部行 ＤＳＡ检查，其中 ５例曾行ＣＴＡ、１３例行 ＭＲ、９例行 ＭＲＡ检查、同时行 ＣＴＡ、ＭＲＡ及ＤＳＡ检查者２例。结果 ５例ＣＴＡ检查者，皆能清楚显示动脉瘤的位置和形状。１３例行ＭＲＩ检查者，６例显示腔内血栓形成。９例ＭＲＡ检查者，显示动脉瘤者７例，５例能显示瘤颈。２２例ＤＳＡ检查者，２１例能清楚显示动脉瘤位置、形状、大小，１７例清晰的显示瘤颈。结论 ＭＲＩ对显示瘤腔内血栓、占位效应及局部缺血性改变较好，ＣＴＡ、ＭＲＡ对显示动脉瘤的三维解剖结构具有重要作用，而ＤＳＡ是诊断动脉瘤的黄金标准。
Objective To investigate the imaging findings of intracranial aneurysms and the effects of different examination methods, so as to provide more information for brain surgery and interventional therapy. Materials and Methods All 22 aneurysms were examined by DSA. Among them, 5 had CTA, 13 had MR, 9 had MRA, and 2 had CTA, MRA and DSA. Results 5 cases of CTA examiner, can clearly show the location and shape of the aneurysm. Thirteen patients underwent MRI examination and 6 patients showed intraluminal thrombosis. Nine patients with MRA showed aneurysm in 7 cases and 5 cases showed tumor neck. Of the 22 DSA examiners, 21 showed clearly the location, shape and size of the aneurysm, and 17 clearly showed the neck. Conclusions MRI shows that the tumor thrombus, space-occupying effect and ischemic changes are good. CTA and MRA play an important role in displaying the three-dimensional anatomy of aneurysms. DSA is the gold standard for the diagnosis of aneurysms.