Head-Neck Angiography 1

Volume Rendering of a contrast enhanced CT angiography of the supraaortal vessels.

Atheromatous plaques in the carotid bifurcations.
The right internal carotid artery has a stenosis at its origin.
There seems to be a stenosis at the origin of the right subclavian artery; this may be attributed to beam hardening artifacts due to the IV contrast.

A crossview stereogram of this view may be found here:
Head-Neck Angiography 1a

Rendering done with a Carestream workstation.