CT angiographic appearance of in-stent restenosis of intracranial arteries treated with the Wingspan stent.
Four patients underwent angioplasty and stenting of medically refractory symptomatic intracranial atherosclerosis with the new Wingspan stent system. In all 4 patients, CT angiography (CTA) showed an abnormality within the stented segment that was suggestive of nonocclusive in-stent thrombus. However, subsequent conventional angiography findings were typical for in-stent restenosis. The CTA imaging features of in-stent restenosis are important to recognize, and the misinterpretation of in-stent restenosis as in-stent thrombus may result in inappropriate management.
Turk
A S
AS
Department of Radiology, University of Wisconsin Hospital and Clinics, Madison, WI, USA. as.turk@hosp.wisc.edu
Rowley
H A
HA
Niemann
D B
DB
Fiorella
D
D
Aagaard-Kienitz
B
B
Pulfer
K
K
Strother
C M
CM
D000328:Adult; D001807:Blood Vessel Prosthesis / Q000009:adverse effects*; D002533:Cerebral Angiography; D005260:Female; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D020765:Intracranial Arterial Diseases / Q000000981:diagnostic imaging* / Q000209:etiology*; D008297:Male; D015607:Stents / Q000009:adverse effects*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome