Table 1:
Patient and aneurysm characteristicsa
| Characteristics | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Patient age (mean) (range) (yr) | 55 (SD, 12) (27–79) | ||||||||
| Clinical presentation | Incidental | Regrowth/persistent aneurysmb | SAH | Headache | Co-incidentalc | Diplopia | Other | ||
| 100 (62.1%) | 20 (12.4%) | 18 (11.2%) | 9 (5.6%) | 6 (3.7%) | 3 (1.9%) | 5 (3.1%) | |||
| Aneurysm location | ICA | BA | MCA | VA | Other | ||||
| 117 (72.7%) | 13 (8.1%) | 10 (6.2%) | 9 (5.6%) | 12 (7.5%) | |||||
| Aneurysm sized (mean) (range) (mm) | 7.8 (SD, 6.3) (1.0–46.0) | ||||||||
| Neck diameter (mean) (range) (mm) | 4.7 (SD, 3.8) (1.0–36.0) | ||||||||
| Dome-to-neck ratio (mean) (range) | 1.7 (SD, 0.9) (0.4–7.5) | ||||||||
| Diameter of the parent artery proximal and distal to the aneurysm mean) (range) (mm) | Proximal | Distal | |||||||
| 3.5 (SD, 0.8) (1.5–7.0) | 3.1 (SD, 0.7) (1.2–5.2) | ||||||||
| Aneurysm type | Saccular | Blister-like | Fusiform | Dissecting | |||||
| 131 (81.4%) | 14 (8.7%) | 11 (6.8%) | 5 (3.1%) | ||||||
| Sidewall or bifurcation aneurysm | Sidewall | Bifurcation | |||||||
| 136 (84.5%) | 25 (15.5%) | ||||||||
a
Data are as mean (minimum–maximum) or absolute number of cases (relative frequency in %).
b
Persistent aneurysm after previous treatment.
c
Aneurysm diagnosed because of a ruptured intracranial aneurysm elsewhere.
d
Maximal diameter.