Angular alteration before and after stenting and at latest follow-up and prestenting proximal vessel diameter (mean ± SEM)

Bifurcation Aneurysm Location	Prestenting Angle δ	Post-Stent-Coiling Angle δ	Latest Follow-Up Angle δ
AcomA	104.4 ± 8.8°	131.5 ± 5.3°a	148.8 ± 7.7°b
MCA	105.4 ± 6.4°	116.8 ± 6.6°c	140.4 ± 6.5°b
BA	102.2 ± 5.7°	120.7 ± 5.2°d	132.6 ± 4.3°e
ICA	97.4 ± 29.3°	104.1 ± 27°	119.6 ± 26.1°b
Total	103 ± 4.2°	121 ± 3.9°d	137.3 ± 3.9°e

^aP < .01, compared with prestenting angle.

^bP < .01, compared with post-stent angle.

^cP < .05, compared with prestenting-coiling angle.

^dP < .0001, compared with prestenting angle.

^eP < .0001, compared with post-stent-coiling angle.