| Location | Number | Percentage |
| Intracranial carotid artery | 31 | 27.43 |
| Middle cerebral artery | 26 | 23.01 |
| Anterior communicating artery | 23 | 20.35 |
| Segment A1 | 04 | 3.54 |
| Jonction A1-A2 | 12 | 10.62 |
| Pericallosal artery | 07 | 6.19 |
| Posterior communicating artery | 04 | 3.54 |
| Basilar artery | 03 | 2.65 |
| Posterior cerebral artery | 01 | 0.89 |
| Anterior superior cerebellar artery | 01 | 0.89 |
| Carotid-ophthalmic junction | 01 | 0.89 |
| TOTAL | 113 | 100 |