Patients | 161 |
Aneurysms | 186 |
Women (%) | 72.4 |
Mean age (yr) (range) | 57.1 (28–82) |
Presentation/indications for treatment (%) | |
Incidental finding/headaches | 31.8 |
Recurrent after coiling/coiling and stenting | 21.7 |
Cranial nerve deficit/mass effect | 18.6 |
Associated second ruptured aneurysm | 13.1 |
Stroke/transient ischemic attack | 7.8 |
Subarachnoid hemorrhage (not acute) | 3.9 |
Recurrent after clipping/failed clipping | 2.3 |
Seizures | 0.8 |
Total No. of aneurysms treated | 186 |
<5 mm | 53 |
5–9.9 mm | 64 |
10–20 mm | 47 |
>20 mm | 22 |
Measurements (mean ± SEM) | |
Aneurysm dome size (mm) | 10.4 ± 0.7 |
Aneurysm neck size (mm) | 6 ± 0.4 |
Dome: neck ratio | 1.6 ± 0.08 |
Proximal parent artery diameter (mm) | 3.8 ± 0.1 |
Distal parent artery diameter (mm) | 3.0 ± 0.1 |
Anterior circulation ICA (%) | 118 (63.4) |
Petrocavernous | 5 (2.7) |
Cavernous | 20 (10.7) |
Carotid cave | 3 (1.6) |
Superior hypophyseal | 5 (2.7) |
Paraophthalmic | 34 (18.2) |
Paraclinoid ICA | 4 (2.2) |
Supraclinoid ICA | 6 (3.2) |
Posterior communicating artery | 36 (19.4) |
Anterior choroidal artery | 5 (2.7) |
Anterior circulation distal to circle of Willis (%) | 41 (22) |
ICA terminus | 5 (2.7) |
Anterior cerebral artery (including AcomA and pericallosal) | 12 (6.4) |
Middle cerebral artery | 24 (12.9) |
Posterior circulation (%) | 27 (14.5) |
Vertebral artery (VA and VB junction) | 8 (4.3) |
Posterior inferior cerebellar artery | 6 (3.2) |
Basilar trunk | 9 (4.8) |
Posterior cerebral artery | 3 (1.6) |
Superior cerebellar artery | 1 (0.5) |
Morphology (%) | |
Wide-neck saccular | 125 (67.2) |
Fusiform/dissecting | 54 (29.0) |
Blister | 7 (3.8) |
Focal disease | 100 (53.8) |
Dysplastic artery | 86 (46.2) |
Note:—AcomA indicates anterior communicating artery; VA, vertebral artery; VB, vertebrobasilar; SEM, standard error of the mean.