CE-MRA MIP: Aneurysmal enlargement of the left cavernous carotid artery. Also, a high-grade
stenosis of proximal LICA and left vertebral arteries.
Ax T2W: Aneurysm of left cavernous carotid artery, with low T2W signal.
Cor T1W: Aneurysm shows heterogeneous high and low T1W signal, and post gadolinium,
significant central enhancement (top right). Note the flow artifact in the phase-encoding direction
of all 3 images.
3D TOF MRA: Peripheral flow-related enhancement is seen in the large left cavernous carotid
aneurysm, with central low-signal; MIP images demonstrate smooth contour of aneurysm.
Key words: mri mra vascular
Cavernous carotid aneurysm