Characteristics | Value | % |
---|---|---|
Patients | 59 | |
Age (mean, yr) | 53.7 | |
Female sex | 46 | 78 |
Aneurysms | 66 | |
Morphology | ||
Saccular | 44 | 66.7 |
Dissecting | 16 | 24.2 |
Blister | 2 | 3 |
Fusiform | 4 | 6.1 |
Size (mean, mm) | 10.7 | |
Size (maximum diameter) | ||
<10 mm (small) | 38 | 57.6 |
>10–25 mm (large) | 23 | 34.8 |
>25 mm (giant) | 5 | 7.6 |
Neck ≥4 mm | 50 | 75.8 |
Dome-to-neck ratio <2 | 36 | 54.5 |
Location | ||
Anterior circulation | 54 | 81.8 |
CCA | 25 | 37.9 |
COA | 16 | 24.2 |
MCA | 7 | 10.6 |
ACA | 2 | 3 |
PcomA | 4 | 6.1 |
Posterior circulation | 12 | 18.2 |
BA | 2 | 3 |
VA | 7 | 10.7 |
PCA | 2 | 3 |
PICA | 1 | 1.5 |
Note:—CCA indicates cavernous carotid artery; COA, carotico-ophthalmic artery; BA, basilar artery; VA, vertebral artery; PcomA, posterior communicating artery; PCA, posterior cerebral artery; PICA, posterior inferior cerebellar artery.