Bleeding activity: 14/41 (34.1%); Aneurysms: 23/41 (56.1%); AVFs: 8/41 (19.5%); Occlusion: 3/41 (7.3%); In which 4/41 (9.8%) of the lesions combined with aneurysm and AVFs; 2/41 (4.9%) of the lesions combined with aneurysms and active bleeding; 2/41 (4.9%) of injuries combined with active bleeding and AVFs.