title: Assessment of superior semicircular canal thickness with advancing age.
abstract: OBJECTIVE
  To determine whether superior semicircular canal dehiscence (SSCD) is more prevalent with advancing age.
  
  
  METHODS
  Retrospective observational study.
  
  
  METHODS
  High-resolution computed-tomographic temporal bone scans were identified for patients of all ages and analyzed by two independent assessors. Multiplanar reconstruction was applied, and the thinnest area of temporal bone overlying each superior semicircular canal (SSC) was measured.
  
  
  RESULTS
  A sample of 121 patients was analyzed that contained an almost identical number of male and female patients. In total, 242 temporal bone images were reviewed. Patients' ages ranged between 6 and 86 years. Age was shown to have a significant linear relationship (P < 0.001) such that for every unit increase in age the predicted thickness was reduced by 0.0047 mm.
  
  
  CONCLUSIONS
  The thickness of the SSC decreases with advancing age.
  
  
  METHODS
  4.
authors.affiliation: Departments of Otolaryngology and Radiology, Norfolk and Norwich University Hospitals NHS Foundation Trust (S.D., C.K-M., J.S.P., D.P.).
authors.forename: Shaun
authors.initials: S
authors.lastname: Davey
authors.affiliation: Departments of Otolaryngology and Radiology, Norfolk and Norwich University Hospitals NHS Foundation Trust (S.D., C.K-M., J.S.P., D.P.).
authors.forename: Christian
authors.initials: C
authors.lastname: Kelly-Morland
authors.affiliation: Departments of Otolaryngology and Radiology, Norfolk and Norwich University Hospitals NHS Foundation Trust (S.D., C.K-M., J.S.P., D.P.).
authors.forename: John S
authors.initials: JS
authors.lastname: Phillips
authors.affiliation: Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, United Kingdom.
authors.forename: Ian
authors.initials: I
authors.lastname: Nunney
authors.affiliation: Departments of Otolaryngology and Radiology, Norfolk and Norwich University Hospitals NHS Foundation Trust (S.D., C.K-M., J.S.P., D.P.).
authors.forename: Davina
authors.initials: D
authors.lastname: Pawaroo
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D007759:Labyrinth Diseases / Q000000981:diagnostic imaging* / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods*; D015995:Prevalence; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012665:Semicircular Canals / Q000000981:diagnostic imaging*; D013701:Temporal Bone / Q000000981:diagnostic imaging; D006113:United Kingdom / Q000453:epidemiology; D055815:Young Adult
keywords: Superior canal dehiscence, superior canal dehiscence syndrome