Characteristic | Aneurysm (n = 859) |
---|---|
Ruptured/unruptured | 78 (9.1%)/781 (90.9%) |
Size of aneurysm | |
Mean (mm) | 5.2 ± 3.1 |
Distribution (mm) | |
–3 | 222 (25.8%) |
4–6 | 475 (55.3%) |
7–9 | 119 (13.9%) |
10– | 43 (5.0%) |
Location of aneurysm | |
Internal carotid artery | 363 (42.2%) |
Anterior cerebral arterya | 193 (22.5%) |
Middle cerebral artery | 207 (24.1%) |
Vertebrobasilar artery | 96 (11.2%) |
↵a Including an anterior communicating artery aneurysm.