title: Laryngeal morphometry with a new laser 'clip on' device.
abstract: OBJECTIVE
  Qualitative laryngoscopic investigations belong to diagnostic routine in laryngology. Nevertheless, quantitative morphometric measurements of intralaryngeal structures have been difficult by now.
  
  
  METHODS
  The development of a two-point-light projection method for endolaryngeal measurements that works with a double reflecting mirror and green laser light is shown.
  
  
  RESULTS
  The laser beams that have a distance of exactly 2 mm are very well visible at the surface of laryngeal structures. The technique can be used during a routine videoendoscopic examination.
  
  
  CONCLUSIONS
  In our opinion this method enables accurate quantitative morphological measurement within the larynx that could be used even in clinical routine. The two-point light projection technique helps to reduce former limitations of endoscopic investigations.
authors.affiliation: Department of Phoniatrics and Pediatric Audiology, University Hospital Hamburg-Eppendorf (UKE), Hamburg, Germany. g.schade@uke.uni-hamburg.de
authors.forename: Goetz
authors.initials: G
authors.lastname: Schade
authors.forename: Rudolf
authors.initials: R
authors.lastname: Leuwer
authors.forename: Mathias
authors.initials: M
authors.lastname: Kraas
authors.forename: Bernhard
authors.initials: B
authors.lastname: Rassow
authors.forename: Markus M
authors.initials: MM
authors.lastname: Hess
mesh_terms: D000886:Anthropometry / Q000295:instrumentation; D004867:Equipment Design; D006801:Humans; D007828:Laryngoscopy; D007830:Larynx / Q000033:anatomy & histology*; D007834:Lasers; D010036:Otolaryngology / Q000295:instrumentation*