title: MRI versus CT in assessment of cochlear patency in cochlear implant candidates.
abstract: OBJECTIVE
  To investigate how cochlear patency as seen on preoperative CT and MRI scans correlates with findings at surgery in cochlear implant patients.
  
  
  METHODS
  CT and MRI scans of 25 patients were reviewed by 3 independent observers. The reviewers classified the cochlear patency and recorded the location of any suspected decrease in patency. Their results were compared with the findings noted during surgery.
  
  
  RESULTS
  Decreased cochlear patency was found in six patients at surgery. The mean sensitivity/specificity of CT and MRI assessment was 33%/88% and 41%/91%, respectively.
  
  
  CONCLUSIONS
  Our study suggests that CT, using axial and semi-longitudinal planes, is equivalent to MRI in predicting cochlear patency.
authors.affiliation: Department of Otorhinolaryngology, University Medical Centre Utrecht, Utrecht, The Netherlands. RBettman@knmg.nl
authors.forename: Robert
authors.initials: R
authors.lastname: Bettman
authors.forename: Erik
authors.initials: E
authors.lastname: Beek
authors.forename: Adriaan
authors.initials: A
authors.lastname: Van Olphen
authors.forename: Frans
authors.initials: F
authors.lastname: Zonneveld
authors.forename: Egbert
authors.initials: E
authors.lastname: Huizing
mesh_terms: D003051:Cochlea / Q000000981:diagnostic imaging* / Q000473:pathology*; D019929:Cochlear Implantation; D003054:Cochlear Implants; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D019986:Persons with Hearing Disabilities / Q000534:rehabilitation*; D011300:Preoperative Care; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods