Document Detail

Verification of two minimally invasive methods for the estimation of the contact pressure in human vocal folds during phonation.
MedLine Citation:
PMID:  21895099     Owner:  NLM     Status:  MEDLINE    
The contact pressure on the vocal fold surface during high pitch or amplitude voice production is believed to be one major source of phonotrauma. Models for the quantitative estimate of the contact pressure may be valuable for prevention and treatment. Various indirect and minimally invasive approaches have been purported to estimate contact pressure. But the accuracy of these methods has not yet been objectively verified in controlled laboratory settings. In the present study, two indirect approaches for the estimation of the contact pressure were investigated. One is based on a Hertzian impact model, and the other on a finite element model. A probe microphone was used for direct measurements of the contact pressure and verifications of the indirect approaches. A silicone replica of human vocal folds was used as a test bed. Consistent contact pressure estimations were obtained using all three methods. The advantages and disadvantages of each approach for eventual clinical applications are described.
Li-Jen Chen; Luc Mongeau
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Validation Studies    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  130     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-07     Completed Date:  2012-01-11     Revised Date:  2013-06-27    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1618-27     Citation Subset:  IM    
Copyright Information:
© 2011 Acoustical Society of America
McGill University, McDonald Engineering Building, 817 Sherbrooke Street West, Montreal QC, H3A 2K6 Canada.
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MeSH Terms
Computer Simulation
Elastic Modulus
Finite Element Analysis
Fourier Analysis
Models, Anatomic
Models, Biological*
Models, Statistical*
Numerical Analysis, Computer-Assisted
Reproducibility of Results
Signal Processing, Computer-Assisted
Stress, Mechanical
Time Factors
Transducers, Pressure
Vocal Cords / anatomy & histology,  physiology*
Grant Support

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

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