Top: Sagittal T1 weighted image reveals a small hyperintensity ventral to the
pons nearby the basilar artery.
Bottom: Axial T2WIs show only some tortuosity of the basilar artery.
Top: Projection images of a 2D-TOF MRA show a focal filling defect in the proximal
basilar artery at the junction of the vertebral arteries.
Bottom: Source images from the MRA reveal good signal in the distal basilar (right)
but decreased signal in the proximal basilar artery (left).
Key words: mri vascular mra
Embolus to basilar artery