Among 15 lesions, except 1 arterstenosis was missed, other 14 lesions were revealed by 3D CTA including 6 aneurysms,6 arteriovenous malformation(AVM),1 arterial stenosis and 1 CCF.

• 三维CTA对15个病灶中除1个动脉狭窄未能显示外，其余病变能清晰辨认，包括6个动脉瘤，6个动静脉畸形，1个动脉狭窄，1个颈内动脉海绵窦瘘。