All aneurysms in the study collective and treated aneurysms
| Location | All Aneurysmsa | Treated Aneurysms | ||
|---|---|---|---|---|
| No. | % | No. | % | |
| ACA/AcomA | 557 | 31.7 | 497 | 36.6 |
| MCA | 458 | 26.0 | 283 | 20.8 |
| Intradural ICA | 530 | 30.1 | 438 | 32.2 |
| Extradural ICA | 88 | 5.0 | 37 | 2.7 |
| Vertebrobasilar | 126 | 7.2 | 104 | 7.6 |
| Total | 1751 | 100 | 1359 | 100 |
Note:—ACA indicates anterior cerebral artery; AcomA, anterior communicating artery.
↵a Two missing data.