title: The prevalence of superior canal dehiscence syndrome as assessed by temporal bone computed tomography imaging.
abstract: CONCLUSIONS
  When a diagnosis of superior canal dehiscence syndrome (SCDS) was made based solely on CT scans, 80% of cases assessed were false positive. This stresses the importance of diagnosing SCDS on the basis of both CT findings and clinical symptoms.
  
  
  OBJECTIVE
  All the coronal computed tomography (CT) scans of the temporal bones retained in this clinic were reviewed to determine how many of these examined ears have dehiscence(s) of the superior semicircular canal (SSCC). We also determined how many of the ears with a dehiscence of SSCC could also be diagnosed clinically on CT scans as having SCDS.
  
  
  METHODS
  CT scans of 82 patients, covering 164 ears, were reviewed to determine how many of these ears had dehiscence of SSCC. Of the ears found to have a dehiscence of SSCC in the above procedure, it was determined how many ears could also be diagnosed clinically as having SCDS.
  
  
  RESULTS
  Dehiscence of SSCC was demonstrated in 5 (3%) of the 164 ears assessed. Of the five ears noted to have a dehiscence of SSCC, the condition was also considered clinically to be SCDS in only one ear (0.6%).
authors.affiliation: Masaki Jibika Clinic, Usami, Ito, Shizuoka, Japan. wbs95368@mail.wbs.ne.jp
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Masaki
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001299:Audiometry; D004427:Ear Diseases / Q000000981:diagnostic imaging*; D005133:Eye Movements; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012665:Semicircular Canals / Q000000981:diagnostic imaging*; D013577:Syndrome; D013701:Temporal Bone / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed