Aneurysm characteristics
| Characteristics | Value |
|---|---|
| Aneurysm rupture to treatment (No.) (%) | |
| 0–1 day | 13 (43.3) |
| 2–7 days | 8 (26.7) |
| >7 days | 9 (30.0) |
| Aneurysm location (No.) (%) | |
| Internal carotid artery | 19 (63.3) |
| Basilar artery | 7 (23.3) |
| Vertebral artery | 2 (6.7) |
| Anterior communicating artery | 1 (3.3) |
| Posterior cerebral artery | 1 (3.3) |
| Median aneurysm height (No.) (mm) | 1.7 |
| Median aneurysm diameter (No.) (mm) | 2 |
| Median diameter of parent vessel proximally (No.) (mm) | 3.5 |
| Median diameter parent vessel distally (No.) (mm) | 3 |
| Median diameter of FRED (No.) (mm) | 4 |
| Median length of FRED (No.) (mm) | 13 |
| Median No. of FREDs used | 1 |
| Aneurysms that were additionally coiled (No.) (%) | 2 (6.7) |