Fig. 2From: Morphometry of cerebral arterial bifurcations harbouring aneurysms: a case-control studyReceiver operator characteristic (ROC) curves for all the most significant predictors of aneurysm (description in the text). α angle, total bifurcation angle; Φ1 angle, angle between the axis of the parent vessel and the larger branch; Φ2 angle, angle between the axis of the parent vessel and the smaller branch; r0, radius of the parent vesselBack to article page