Locations of the aneurysms
| Aneurysm Location | Number |
|---|---|
| Anterior communicating artery | 30 (44%) |
| Internal carotid artery | 23 (34%) |
| Middle cerebral artery | 4 |
| Pericallosal artery | 3 |
| Basilar artery | 3 |
| Posterior cerebral artery | 2 |
| Posterior communicating artery | 1 |
| Posterior and inferior cerebellar arteries | 1 |
| Anterior and inferior cerebellar arteries | 1 |