right side weakness, occlusion of the left ICA from 2-3cm above the bifurcation. There is no MR evidence of subacute hematoma on the wall of the left extracranial ICA.Instead, the left ICA from the occlusion point to the level of reconstitution (paraclinoid segment) shows luminal iso or slightly high signal intensities indicating intraluminal evolving thrombus. And the left ICA appears to be occluded.There is no other abnormal signal intensity on other craniocervical arterial system.3D MRA neck pre and post-gadolinium images with maximum intensity projections of the cervical vasculature demonstrate complete occlusion of the left extracranial ICA and reconstituted at the level of the left ophthalmic artery, no change since prior CT angiography.Otherwise, the right brachiocephalic, left common carotid, right CCA and left subclavian arteries appear to be normal. The vertebral artery origins are normal.
1. No MR evidence of arterial dissection on the left ICA (extracranial and intracranial).2. Complete occlusion of the left ICA from 2cm above the bifurcation and reconstituted at the level of the left ophthalmic artery. 