title: Multichannel computed tomography angiography and its role in the evaluation of rotational vertebrobasilar insufficiency.
abstract: We present a case of rotational vertebrobasilar insufficiency diagnosed and followed by computed tomography angiography. Diagnosis of this entity provides a unique challenge in that the patient must be positioned properly to avoid a false-negative result without causing ischemic brain injury. The evaluation of rotational vertebrobasilar insufficiency with computed tomography angiography has never been described in the literature to the best of our knowledge. We highlight the advantages of using this technique in the diagnosis and follow-up of this uncommon entity.
authors.affiliation: Indiana University School of Medicine, Indianapolis, IN 46202, USA. cyho@iupui.edu
authors.forename: Chang Yueh
authors.initials: CY
authors.lastname: Ho
authors.forename: Annette C
authors.initials: AC
authors.lastname: Douglas-Akinwande
authors.forename: James Louis
authors.initials: JL
authors.lastname: Rankin
mesh_terms: D000328:Adult; D001157:Arterial Occlusive Diseases / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D002533:Cerebral Angiography / Q000295:instrumentation / Q000379:methods*; D003287:Contrast Media / Q000008:administration & dosage; D003937:Diagnosis, Differential; D017586:Diskectomy; D004244:Dizziness / Q000209:etiology; D005500:Follow-Up Studies; D019416:Head Movements; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008297:Male; D009759:Nystagmus, Pathologic / Q000209:etiology; D011187:Posture; D011856:Radiographic Image Enhancement / Q000379:methods; D012086:Reoperation; D012399:Rotation / Q000009:adverse effects*; D013575:Syncope / Q000209:etiology; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014711:Vertebral Artery / Q000000981:diagnostic imaging* / Q000601:surgery; D014715:Vertebrobasilar Insufficiency / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery
chemical_list: D003287:Contrast Media