The CCF emptied into the ipsilateral superior ophthalmic vein.The filling of the tributaries of ICA was poor.In the same time, we can see the site and sizes of the fistula and collateral circulation.

• 全脑血管造影表现为对比剂自颈内动脉或颈外动脉分支溢入海绵窦，形成一团浓密的不规则阴影，海绵窦及眼静脉等早期显影而颈内动脉床突上段和大脑前、中动脉不易充盈，并且可观察到瘘口位置、大小及侧支循环情况。