Document Detail

Interspecies comparison of mucosal wave properties using high-speed digital imaging.
MedLine Citation:
PMID:  20513038     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES/HYPOTHESIS: The purpose of this study was to compare the vocal fold vibratory characteristics of ex vivo bovine, canine, ovine, and porcine larynges to human male and female vocal fold vibrations to determine the best model organism for laryngeal studies concerning vibratory and kinetic characteristics.
STUDY DESIGN: Prospective experimental.
METHODS: High-speed videos of phonation were gathered at 4,000 frames per second (fps) in the animal models and human high-speed endoscopy data were gathered at 2,000 fps. Videos were converted into kymograms, and the amplitude, oscillation frequency, and phase difference of vocal fold vibration were measured.
RESULTS: No statistically significant differences were found with respect to frequency, amplitude, or phase difference between canines and humans. Porcines were not significantly different from human females but did have an oscillation frequency significantly different from human males. Ovine vibrational amplitudes were significantly different from humans, and bovine frequency and amplitude differed significantly from humans.
CONCLUSIONS: Canine and porcine larynges are the most appropriate model specimens for laryngeal studies contingent on vibratory or kinetic properties of phonation.
Michael F Regner; Mark J Robitaille; Jack J Jiang
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  The Laryngoscope     Volume:  120     ISSN:  1531-4995     ISO Abbreviation:  Laryngoscope     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-31     Completed Date:  2010-07-15     Revised Date:  2014-09-13    
Medline Journal Info:
Nlm Unique ID:  8607378     Medline TA:  Laryngoscope     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1188-94     Citation Subset:  IM    
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MeSH Terms
Analysis of Variance
Laryngoscopy / methods*
Models, Animal*
Mucous Membrane / physiology
Phonation / physiology
Prospective Studies
Signal Processing, Computer-Assisted
Video Recording
Vocal Cords / physiology*
Grant Support
R01 DC005522/DC/NIDCD NIH HHS; R01 DC005522-09/DC/NIDCD NIH HHS; R01 DC005522-09/DC/NIDCD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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