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目的：评价ＭＲＡ不同成像方法对动静脉畸形（ＡＶＭ）的诊断价值，探讨最佳方法选择。方法：２６例ＡＶＭ患者分别作常规ＭＲ成像及ＭＲＡ成像，其中２６例均行２ＤＰＣ检查，８例行３Ｄ－ＴＯＦ检查，１８例行３Ｄ－ＭＯＴＳＡ检查，８例行３ＤＰＣ检查。比较各序列ＡＶＭ的血管巢、供血动脉及引流静脉的显示情况。结果：ＭＲ图像及ＭＲＡ各序列图像均满意地显示了血管巢。２ＤＰＣ对供血动脉及引流静脉显示率分别为６５．４％和８０．８％；３Ｄ－ＴＯＦ对供血动脉及引流静脉显示率为７５．０％和１２．５％；３Ｄ－ＭＯＴＳＡ显示率为１００％和３３．３％；３ＤＰＣ显示率为８７．５％和１００％。结论：３Ｄ－ＭＯＴＳＡ应作为诊断ＡＶＭ的主要ＭＲＡ检查序列，低流速的２ＤＰＣ序列作为辅助序列，结合ＳＥ图像综合观察，能对ＡＶＭ做出评价
Objective: To evaluate the diagnostic value of different MRA imaging modalities for AVM and to explore the best method to choose. Methods: Twenty-six AVM patients underwent routine MR imaging and MRA imaging. Among them, 2DPC was performed in 26 cases, 3D-TOF in 8 cases, 3D-MOTSA in 18 cases and 3DPC in 8 cases. Compare the AVM vascular nests, blood supply arteries and drainage veins of each sequence. Results: MR images and MRA images of each series showed satisfactory vascular nests. 2DPC showed a rate of 65.4% and 80.8% for the feeding arteries and draining veins; 3D-TOF showed rates of 75.0% and 12.5% for the feeding arteries and draining veins; 3D-MOTSA showed rates of 100 % And 33.3% respectively; the 3DPC display rates were 87.5% and 100%. Conclusion: 3D-MOTSA should be used as the main MRA examination sequence for the diagnosis of AVM. 2DPC sequences with low flow rate should be used as auxiliary sequences. Combined with SE images, AVM can be evaluated