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AJNR - American Journal of Neuroradiology

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A Rare Complication of Carotid Artery Stenting: Displacement of Marker Ring Causing Locking of Stent and Incomplete Stent Expansion

E. Akgul^a, E.H. Aksungur^a, K. Korur^a, K. Aikimbaev^a and H. Yaliniz^b

^a Department of Radiology, Faculty of Medicine, Cukurova University, Adana, Turkey
^b Department of Cardiovascular Surgery, Faculty of Medicine, Cukurova University, Adana, Turkey

View larger version (115K): [in this window] [in a new window]   Fig 1. After deployment of the Wallstent, a distal metallic ring marker, causing incomplete expansion, is seen on the stent (A). Digital subtraction angiography of the carotid artery with the Wallstent is shown (B).

View larger version (71K): [in this window] [in a new window]   Fig 2. The stent, shaft, and filter are seen after surgical removal of the devices. The distal metallic marker (white arrow), which must be on the distal end of the shaft (black arrow), is on the stent and prevents the complete expansion of the stent. Arrowhead shows the proximal metallic marker on the shaft.