Patient information and characteristics of aneurysms treated with the FD
| 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.