Table 2.
Aneurysm characteristics of DACA.
| Aneurysm position of DACA (n = 140) | |
|---|---|
| A2 | 63 (45%) |
| A3 | 76 (54.3%) |
| A4 | 1 (0.7%) |
| A5 | 0 (0%) |
| Aneurysm size of DACA (n = 60) | |
| Neck diameter, median (range) | 2.79 (1–12) |
| Small (<5 mm) | 55 (91.7%) |
| Medium (5–15 mm) | 5 (8.3%) |
| Large (15–25 mm) | 0 |
| Giant (≥25 mm) | 0 |
| Dome diameter, median (range) | 4.53 (1.4–15.31) |
| Small (<5 mm) | 45 (75%) |
| Medium (5–15 mm) | 13 (21.7%) |
| Large (15–25 mm) | 2 (3.3%) |
| Giant (≥25 mm) | 0 |
| Vertical diameter, median (range) | 3.34 (1.2–10) |
| Small (<5 mm) | 52 (86.7%) |
| Medium (5–15 mm) | 8 (13.3%) |
| Large (15–25 mm) | 0 |
| Giant (≥25 mm) | 0 |
| Aneurysm form of DACA (n = 115) | |
| Saccular | 108 (93.9%) |
| Fusiform | 1 (0.9%) |
| Dissecting | 3 (2.6%) |
| Irregular | 3 (2.6%) |
| Associated cerebrovascular findings (n = 140) | |
| Multiple aneurysm | 2 (1.4%) |
| Moyamoya disease | 2 (1.4%) |
| Arteriovenous fistula | 1 (0.7%) |
| Vascular occlusion | 1 (0.7%) |