| Occlusion grade* | Procedure n=61 | 6 months n=60 | 12 months n=59 | 36 months n=53 | |
| Adequate occlusion (complete occlusion+residual neck) | 11 (18.0%) | 49 (81.7%) | 46 (78.0%) | 42 (79.2%) | |
| Complete occlusion | 4 (6.6%) | 25 (41.7%) | 27 (45.8%) | 24 (45.3%) | |
| Residual neck | 7 (11.5%) | 24 (40.0%) | 19 (32.2%) | 18 (34.0%) | |
| Residual aneurysm | 50 (82.0%) | 11 (18.3%) | 13 (22.0%) | 11 (20.7%) |