title: Intravascular ultrasound to assess extracranial vertebral artery restenosis: case report.
abstract: We present a case report of a patient who developed restenosis 5 months after initial stent placement. computed tomography (CT) angiography revealed a 70% stenosis, while conventional angiography revealed a 40% stenosis. An intravascular ultrasound (IVUS) was used to assess the degree of narrowing along with the mechanism causing the stenosis. IVUS can be utilized to resolve discrepancies between imaging modalities for degree of stenosis and also aid in determining the mechanism of restenosis after stent placement in the extracranial vertebral arteries.
authors.affiliation: Department of Neurology, Michigan State University, East Lansing, MI 48824, USA. Rishi.gupta@ht.msu.edu
authors.forename: Rishi
authors.initials: R
authors.lastname: Gupta
authors.forename: Archit
authors.initials: A
authors.lastname: Bhatt
authors.forename: Mounzer
authors.initials: M
authors.lastname: Kassab
authors.forename: Arshad
authors.initials: A
authors.lastname: Majid
mesh_terms: D000369:Aged, 80 and over; D002533:Cerebral Angiography; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging* / Q000628:therapy; D005260:Female; D006801:Humans; D012008:Recurrence; D015607:Stents; D014057:Tomography, X-Ray Computed; D018084:Ultrasonography, Interventional; D014711:Vertebral Artery / Q000000981:diagnostic imaging*