目的评价数字减影血管造影（ＤＳＡ）、磁共振成像（ＭＲＩ）及磁共振血管造影（ＭＲＡ）在脑动静脉畸形（ＡＶＭ）诊断中的价值。②方法对病理证实的１１３例ＡＶＭ病人皆行ＤＳＡ及ＭＲＩ检查，其中６７例行ＭＲＡ检查。③结果ＤＳＡ表现为密集成球、相互交叉缠绕的血管团或块状血管；ＭＲＩ表现为蜂窝状、葡萄状和条索状流空血管，无明显占位效应；ＭＲＡ显示局部纡曲的血管团，血管分支增多，缠绕在一起。ＤＳＡ及ＭＲＩ对ＡＶＭ的诊断率远高于ＭＲＡ（χ２＝１０６．７，Ｐ＜０．０１）。④结论ＤＳＡ与ＭＲＩ结合使用，对ＡＶＭ的诊断及治疗有重要价值。ＭＲＡ可作为ＭＲＩ的补充用于筛选及ＡＶＭ切除术后随访检查。 Objective To evaluate the value of digital subtraction angiography (DSA), magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) in the diagnosis of cerebral arteriovenous malformations (AVM). Methods The pathological confirmed 113 cases of AVM patients were DSA and MRI examination, of which 67 cases of MRA examination. Results DSA manifested as densely intertwined, cross-wound blood vessels or massive blood vessels; MRI showed honeycomb, grape-like and cord-like empty blood vessels, no significant space-occupying effect; MRA showed local tortuous vascular groups , Vascular branches increased, wound together. The diagnostic rate of AVM by DSA and MRI is much higher than MRA (χ2 = 106.7, P <0.01). ④ Conclusion DSA combined with MRI, the diagnosis and treatment of AVM has important value. MRA can be used as a supplement to MRI screening and AVM resection follow-up examination.