Figure 4.

(A) Cervical MRA image showing type 2 aorta. (B) T1-weighted carotid artery black-blood MRI showing high intensity in the plaque area, suggesting unstable plaque. (C) Carotid artery angiography shows approximately NASCET 50% stenosis at the origin of the right internal carotid artery. (D) Placement of a Carotid WALLSTENT 10 mm × 24 mm. (E, F) Head MRI performed the day after the operation showing scattered DWI with high signal intensity in the left cerebral hemisphere, suggesting acute infarction. MRA: magnetic resonance angiography; MRI: magnetic resonance imaging; NASCET: North American Symptomatic Carotid Endarterectomy Trial; DWI: diffusion-weighted imaging.