From: Role of preoperative computed tomography angiographic anatomical considerations and their intraoperative interpretations in prediction of outcome in microsurgical clipping of ruptured anterior communicating aneurysm
Aneurysm morphometry
 Neck size
 Sac dimensions
Projection
Hypoplastic A1
Normal variations of Acom artery
Neck extending to ipsilateral A2 segment
A2-aneurysm angle
 Opened
 Closed (right–left)