Primary efficacy end point at a median of 6 months (range, 1–38 months)a
| Aneurysm Location | Aneurysm Occlusion | ||||
|---|---|---|---|---|---|
| Occlusion Rateb (%) | Total | ||||
| <50 | 50–95 | >95 | 100 | ||
| Anterior circulation (ICA) | 6 (6.1%) | 11 (11.2%) | 4 (4.1%) | 77 (78.6%) | 98 |
| Petrocavernous | 1 | 3 | 4 | ||
| Cavernous | 2 | 2 | 12 | 16 | |
| Carotid cave | 1 | 3 | 4 | ||
| Superior hypophyseal | 1 | 3 | 4 | ||
| Paraophthalmic | 2 | 2 | 24 | 28 | |
| Paraclinoid | 3 | 3 | |||
| Supraclinoid | 1 | 1 | 3 | 5 | |
| Posterior communicating artery | 1 | 4 | 2 | 24 | 31 |
| Anterior choroidal artery | 1 | 2 | 3 | ||
| Anterior circulation distal to circle of Willis | 2 (5.3%) | 9 (23.7%) | 2 (5.3%) | 25 (65.8%) | 38 |
| ICA terminus | 1 | 1 | 1 | 2 | 5 |
| Anterior cerebral artery (including AcomA) | 1 | 1 | 7 | 9 | |
| Middle cerebral artery | 1 | 7 | 16 | 24 | |
| Posterior circulation | 1 (4.5%) | 2 (9.1%) | 3 (13.6%) | 16 (72.7%) | 22 |
| VA and VB junction | 1 | 7 | 8 | ||
| Posterior inferior cerebellar artery | 1 | 2 | 2 | 5 | |
| Basilar trunk | 1 | 1 | 4 | 6 | |
| Posterior cerebral artery | 3 | 3 | |||
| Total | 9 (6%) | 22 (13%) | 9 (6%) | 118 (75%) | 158 |
Note:—AcomA indicates anterior communicating artery; VA, vertebral artery; VB, vertebrobasilar.
↵a Digital subtraction angiography follow-up was available in 158 aneurysms (86.8%).
↵b Occlusion rates at the latest follow-up are based on aneurysm volume calculated on pre-and posttreatment digital subtraction angiograms.