title: [CT rhinometry : a correlation of rhinomanometry and multiplanar computer tomography of the nasal cavity].
abstract: BACKGROUND
  Otorhinolaryngologists require new diagnostic methods to give further insight into the physiology of nasal breathing. The functional aspects of radiological data in the field of ENT have rarely been examined. This study compares computed tomography (CT) scan area measurements of the paranasal sinuses with physiological data from rhinomanometry.
  
  
  METHODS
  In a retrospective study, paranasal CT scans from 36 patients were analysed for volume, width and hydraulic diameter of the five key regions of the nasal cavity (CT rhinometry) and compared to the active anterior rhinomanometric (RMM) results representing the gold standard in nasal flow description.
  
  
  RESULTS
  The highest correlation between the rhinomanometric results and CT rhinometry was found at the internal ostium, followed by the diffuser region. The structures important for regulating nasal flow could thus be identified in the CT area data.
  
  
  CONCLUSIONS
  CT rhinometry revealed structures important for nasal breathing, in addition to providing anatomical and topographical data. CT rhinometry measured volumes, width and hydraulic diameters of the nasal cavity correlated with measurements of transnasal flow.
authors.affiliation: Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde/Chirurgie, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Deutschland. klaus.eichhorn@ukb.uni-bonn.de
authors.forename: K W G
authors.initials: KW
authors.lastname: Eichhorn
authors.forename: B
authors.initials: B
authors.lastname: Schneider
authors.forename: T A
authors.initials: TA
authors.lastname: Bley
authors.forename: I
authors.initials: I
authors.lastname: Wagner
authors.forename: A
authors.initials: A
authors.lastname: Schröck
authors.forename: M
authors.initials: M
authors.lastname: Jakob
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009666:Nose / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D009668:Nose Diseases / Q000175:diagnosis* / Q000503:physiopathology*; D015203:Reproducibility of Results; D025363:Rhinomanometry / Q000379:methods*; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult