Summary of aneurysm cases*
| Characteristics | Group 1 | Group 2 | Group 3 | Group 4 | Summary |
|---|---|---|---|---|---|
| Age (year) | |||||
| Mean | 65.2 | 64.2 | 51.3 | 57.3 | 59.5 |
| Range | 48–81 | 42–79 | 24–70 | 47–70 | 24–81 |
| Sex (No. of patients) | |||||
| Female | 5 | 5 | 6 | 3 | 19 |
| Male | 1 | 1 | 0 | 3 | 5 |
| Unruptured-ruptured aneurysms (No. of patients) | 4–2 | 4–2 | 4–2 | 4–2 | 16–8 |
| Total No. of aneurysms | 6 | 6 | 6 | 6 | 24 |
| Largest diameter of aneurysm (mm) | |||||
| Mean | 5.2 | 6.25 | 7.2 | 11.0 | 7.4 |
| Range | 3.6–8.2 | 5.1–8.1 | 5–8 | 6–15 | 3.6–15 |
| Diameter of aneurysm neck (mm) | |||||
| Mean | 3.5 | 3.7 | 4.4 | 7.17 | 4.7 |
| Range | 2.3–6.5 | 3.3–4 | 2.7–7 | 4–14.6 | 2.3–14.6 |
| Size of aneurysm (No. of patients) | |||||
| <7 mm | 5 | 4 | 2 | 1 | 12 |
| 7–12 mm | 1 | 2 | 4 | 2 | 9 |
| 13–24 mm | 0 | 0 | 0 | 3 | 3 |
| Diameter of parent artery vessel lumen (mm) | |||||
| Mean | 2.1 | 2.2 | 3.9 | 3.4 | 2.9 |
| Range | 1.3–3.2 | 1.6–2.7 | 3.4–5.3 | 2.7–4.4 | 1.3–4.4 |
* Groups 1, 2, 3, and 4 are aneurysms located at the AComA, MCA, ICA, and BA, respectively.