Laryngeal morphometry with a new laser 'clip on' device.
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.
Schade
Goetz
G
Department of Phoniatrics and Pediatric Audiology, University Hospital Hamburg-Eppendorf (UKE), Hamburg, Germany. g.schade@uke.uni-hamburg.de
Leuwer
Rudolf
R
Kraas
Mathias
M
Rassow
Bernhard
B
Hess
Markus M
MM
D000886:Anthropometry / Q000295:instrumentation; D004867:Equipment Design; D006801:Humans; D007828:Laryngoscopy; D007830:Larynx / Q000033:anatomy & histology*; D007834:Lasers; D010036:Otolaryngology / Q000295:instrumentation*