Figure 3
From: Carotid Wallstent placement difficulties encountered in carotid artery stenting
Unsuccessful CWS placement (tortuosity 60°; type B lesion) (example 4). Right common carotid arteriogram. A. Severe stenosis observed at the origin of the right internal carotid artery. B. Guiding the 6-mm × 22-mm CWS (arrow). C. Stent placement (arrow). D. Stent shortening and migration distally to the lesion observed one minutes after placement (arrow). E. Guiding the 6-mm × 20-mm precise stent to overlap slightly with the proximal end of the CWS (arrow). F. Precise stent deployment (arrow). G. Postdilatation with a 5-mm-diameter balloon (arrow). H. Good dilatation observed on the arteriogram taken immediately afterwards.