Table 1

Location distribution of unruptured aneurysms

Group 1Group 2p Value
AComA14 (13.72%)26 (14.86%)0.80
AChA1 (0.98%)8 (4.57%)0.10
Distal ACA3 (2.94%)4 (2.29%)0.74
MCA bifurcation2 (1.96%)12 (6.86%)0.07
M12 (1.96%)1 (0.57%)0.28
Distal MCA2 (1.96%)1 (0.57%)0.28
ICA bifurcation7 (6.86%)10 (5.71%)0.70
Paraclinoid34 (33.33%)67 (38.29%)0.41
Carotid–ophthalmic18 (52.94%)36 (53.73%)0.55
Cavernous4 (11.76%)15 (22.39%)0.14
Hypophyseal10 (29.41%)14 (20.90%)0.61
Posterior wall2 (5.88%)2 (2.98%)0.58
PComA8 (7.84%)18 (10.28%)0.50
PICA1 (0.98%)2 (1.14%)0.90
Tip BA20 (19.6%)20 (11.43%)0.06
Mid BA6 (5.88%)4 (2.29%)0.12
VA–BA junction2 (1.96%)00.06
VA02 (1.14%)0.28
  • ACA, anterior cerebral artery; AComA, anterior communicating artery; AChA, anterior choroidal artery; BA, basilar artery; ICA, internal carotid artery; MCA, middle cerebral artery; PComA, posterior communicating artery; PICA, posterior inferior cerebellar artery; VA, vertebral artery.