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Table 1: 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.