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Table 3: Primary efficacy end point at a median of 6 months (range, 1–38 months)^{^a}
Aneurysm Location Aneurysm Occlusion
Occlusion Rate^{^b} (%) Total
<50 50–95 >95 100
Anterior circulation (ICA) 6 (6.1%) 11 (11.2%) 4 (4.1%) 77 (78.6%) 98
    Petrocavernous 1 3 4
    Cavernous 2 2 12 16
    Carotid cave 1 3 4
    Superior hypophyseal 1 3 4
    Paraophthalmic 2 2 24 28
    Paraclinoid 3 3
    Supraclinoid 1 1 3 5
    Posterior communicating artery 1 4 2 24 31
    Anterior choroidal artery 1 2 3
Anterior circulation distal to circle of Willis 2 (5.3%) 9 (23.7%) 2 (5.3%) 25 (65.8%) 38
    ICA terminus 1 1 1 2 5
    Anterior cerebral artery (including AcomA) 1 1 7 9
    Middle cerebral artery 1 7 16 24
Posterior circulation 1 (4.5%) 2 (9.1%) 3 (13.6%) 16 (72.7%) 22
    VA and VB junction 1 7 8
    Posterior inferior cerebellar artery 1 2 2 5
    Basilar trunk 1 1 4 6
    Posterior cerebral artery 3 3
Total 9 (6%) 22 (13%) 9 (6%) 118 (75%) 158
Note:—AcomA indicates anterior communicating artery; VA, vertebral artery; VB, vertebrobasilar.
↵a Digital subtraction angiography follow-up was available in 158 aneurysms (86.8%).
↵b Occlusion rates at the latest follow-up are based on aneurysm volume calculated on pre-and posttreatment digital subtraction angiograms.