Materials and Methods The results of MRI and MRA in 16 cases with AVM were compared with that of DSA.The feeding arteries, nidus and draining veins were observed respectively.

• 材料与方法对16例AVM者行MRI和MRA检查并与DSA进行对照研究，分别观察供血动脉、血管巢和引流静脉情况。