Fig 2.

Whole-brain arterial imaging in a healthy volunteer. A depicts midsystolic blood flow with streamlines in the basilar artery, with flow in the bilateral vertebral arteries seen inferiorly and flow in the posterior cerebral artery seen superiorly. In addition, flow within the bilateral superior cerebellar arteries can be appreciated. B and C demonstrate flow in the right anterior and middle cerebral arteries. The pericallosal branch of the anterior cerebral artery is well visualized, as is the middle cerebral artery trifurcation. Magnitude images are provided in midline sagittal and axial planes for orientation.