22 April 2010

Anterior Cerebral Artery Trifurcation

Two opposite way rotated 3D reconstructions, coronal and sagittal MIP images show Anterior Cerebral Artery Trifurcation. Defined as the occurrence of three A2 segments. This is a normal anatomic variant. Prevalence ranges from 2% to 13%. Most likely represents persistence of the median callosal artery.