Aneurysm locations
| Location | Number of Aneurysms (%) |
|---|---|
| Anterior circulation | 187 (76) |
| Paraclinoid carotid artery | 95 (38.5) |
| Posterior communicating artery | 24 (9.7) |
| Middle cerebral artery | 22 (8.9) |
| Anterior communicating artery | 19 (7.7) |
| Intracavernous/intrapetrous | 14 (5.7) |
| Internal carotid artery bifurcation | 5 (2) |
| Anterior choroidal | 3 (1.2) |
| Anterior cerebral artery | 3 (1.2) |
| Others | 2 (0.8) |
| Posterior circulation | 60 (24) |
| Basilar tip | 36 (14.6) |
| Basilar trunk | 15 (6.1) |
| Posteroinferior cerebellar artery | 3 (1.2) |
| Posterior cerebral artery | 3 (1.2) |
| Vertebral artery | 3 (1.2) |