title: Contrast-less stent placement for vertebral artery origin stenosis.
abstract: We performed stent placement under intravascular ultrasound (IVUS), without the use of contrast medium, in a male patient in his 70s who had vertebral artery origin stenosis and decreased renal function. Satisfactory dilatation was achieved without complications, and the patient remained asymptomatic at 2 years of follow-up. We now report the details of this procedure. Stent placement under IVUS guidance may be useful in patients in whom contrast medium is contraindicated.
authors.affiliation: 1 Department of Neurosurgery, Brain Attack Center Ota Memorial Hospital, Hiroshima, Japan.
authors.forename: Shinzo
authors.initials: S
authors.lastname: Ota
authors.affiliation: 1 Department of Neurosurgery, Brain Attack Center Ota Memorial Hospital, Hiroshima, Japan.
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Sekihara
authors.affiliation: 2 Department of Neurology, Faculty of Medicine, Ooita University, Ooita, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Himeno
authors.affiliation: 3 Department of Neurosurgery, Hyogo Collage of Medicine, Nishinomiya, Japan.
authors.forename: Yasue
authors.initials: Y
authors.lastname: Tanaka
authors.affiliation: 4 Department of Spinal Surgery, Brain Attack Center Ota Memorial Hospital, Hiroshima, Japan.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Ohtonari
mesh_terms: D000368:Aged; D000800:Angioplasty, Balloon; D057510:Endovascular Procedures / Q000379:methods*; D006801:Humans; D007676:Kidney Failure, Chronic / Q000175:diagnosis; D007677:Kidney Function Tests; D008279:Magnetic Resonance Imaging; D008297:Male; D015607:Stents; D018084:Ultrasonography, Interventional; D014715:Vertebrobasilar Insufficiency / Q000601:surgery*
keywords: Angioplasty; IVUS (intravascular ultra sonography); contrast medium; stenting; vertebral artery