To evaluate the diagnostic value of 3 dimensional electron beam computed tomography angiography (3D-EBCTA) in the diagnosis of pre-and postoperative intracranial arteriovenous malformation.

• 目的：探讨电子束CT三维血管造影（3D-EBCTA）在评价脑动静脉畸形手术前后中的价值与限度。