By contrast,19 lesions in 17 cases were detected by DSA,including 7 aneurysms,8 AVMs,2 arterial stenoses and 2 CCFs.

• DSA检查 17例患者存在血管异常 ,3例患者显示正常 ,存在血管异常的 17例患者共检出 19个病变 ,7个动脉瘤 ,8个AVM ,2个动脉狭窄 ,2个CCF。