**3.1. Angiographic results**


Immediate angiographic results of the 236 aneurysms treated with stent-assited coiling are summarized in Table 2.

**Table 2.** Immediate angiographic occlusion classification

Aneurysm occlusion rate was analyzed in relation to different stenting techniques, bail-out stenting cases excluded. Stenting before coiling was performed in 205 aneurysms and angiographic results showed class 1 occlusion in 142 (69.3%) aneurysms, class 2 in 39

Overall (%) 236 162(68.6) 45(19.1) 29(12.3)

(19.0%) aneurysms, and class 3 in 24 (11.7%) aneurysms. Stenting after balloon-assisted coiling was performed in 24 aneurysms and angiographic results showed class 1 occlusion in 19 (79.2%) aneurysms, class 2 in 3 (12.5%) aneurysms, and class 3 in 2 (8.3%) aneurysms. On comparative analysis of stenting before coiling versus stenting after balloon-assisted coiling, the complete occlusion rate did not show statistical difference ( *P*=0.315, Χ2 test ).
