Characteristics of 13 patients with 24 additional aneurysms detected on 5-year MRA follow-up
| Characteristics | Data |
|---|---|
| Women | 12 (92%) |
| Age | Mean, 52 years; range, 40–70 years |
| Ruptured aneurysms | 11 (85%) |
| Aneurysm size | Mean, 3.1 mm; range, 1–6 mm |
| >1 Additional aneurysm | 5 (38%) |
| Aneurysm location | |
| Anterior cerebral artery | 4 |
| Middle cerebral artery | 10 |
| Posterior circulation | 3 |
| Internal carotid artery | 7 |
| De novo aneurysms | 1 |
| Unchanged | 18 |
| Grown | 1 |
| Incomparable | 4 |