title: [High-resolution CT with multi-planar reformation in diagnosis of stapedial otosclerosis].
abstract: OBJECTIVE
  To evaluate the value of HRCT with multi-planar reformation (MPR) in the diagnosis of otosclerosis.
  
  
  METHODS
  138 ears in 129 patients with otosclerosis confirmed by surgery were evaluated retrospectively, using the MPR image along stapes as standard image, and 132 normal ears were collected as the control group.
  
  
  RESULTS
  In the otosclerosis group, HRCT-MPR was positive in 108 ears, suspicious positive in 12 ears, and negative in 18 ears.In the control group, HRCT-MPR was positive in 4 ears, suspicious positive in 9 ears, and negative in 119 ears. The sensitivity for HRCT-MPR was 87.0% and the specificity was 90.2%. However, with 2 mm axial CT alone, the sensitivity was only 47.8%.The positive findings were mainly fenestral foci which related to stapes.
  
  
  CONCLUSIONS
  HRCT-MPR showed high rate of sensitivity and specificity.We recommend the MPR image along stapes as standard image for otosclerosis diagnosis.
authors.affiliation: Department of Radiology, Eye and ENT Hospital, Fudan University, Shanghai 200031, China.
authors.forename: Rujian
authors.initials: R
authors.lastname: Hong
authors.forename: Yanbo
authors.initials: Y
authors.lastname: Yin
authors.forename: Yucheng
authors.initials: Y
authors.lastname: Pan
authors.affiliation: Email: cjr.shayan@vip.163.com.
authors.forename: Yan
authors.initials: Y
authors.lastname: Sha
mesh_terms: D016022:Case-Control Studies; D003952:Diagnostic Imaging / Q000379:methods*; D006801:Humans; D010040:Otosclerosis / Q000175:diagnosis*; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013199:Stapes / Q000473:pathology*; D014057:Tomography, X-Ray Computed