Percentage relative incidence of very small aneurysms (VSAs), small aneurysms (SAs) and other ruptured aneurysms at each location
| Location | VSAs | SAs | Others |
|---|---|---|---|
| ACOM | 36.7 | 48.4 | 14.9 |
| PCOM | 13.5 | 58.2 | 28.3 |
| ICA | 30.9 | 35.3 | 33.8 |
| MCA | 18.4 | 51.0 | 30.6 |
| Basilar | 29.4 | 44.1 | 26.5 |
| Pericallosal | 62.5 | 25.0 | 22.5 |
| PICA | 66.7 | 33.3 | 0.0 |
| Others | 35.0 | 50.0 | 15.0 |
ACOM, anterior communicating artery; ICA, internal carotid artery; MCA, middle cerebral artery; PCOM, posterior communicating artery; PICA, posterior inferior cerebellar artery.