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Reliability of laryngo-stroboscopic evaluation on lesion size and glottal configuration: A revisit.
MedLine Citation:
PMID:  24222186     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objective: This study investigated the inter-rater and intra-rater reliability of four basic visual perceptual parameters (lesion size rating and glottal configuration) in laryngo-stroboscopic evaluation. Study Design & Method: Two hundreds and fifty-five laryngo-stroboscopic video samples were evaluated by three raters on four measurements: 1) mass lesion size rating, 2) amplitude of vocal fold vibration, 3) supraglottic activity, and 4) shape of the glottal closure using the modified Stroboscopy Examination Rating Form. Results: Good inter- and intra-rater reliability were found in rating the lesion size (0.75-0.81, p=0.001), antero-posterior supraglottic activity (0.64, p=0.001) and glottal closure (0.65, p=0.001). Inter-rater reliability in evaluating the medio-lateral supraglottic activity and the amplitude of vocal fold vibration were low to moderate (0.50 and 0.46 respectively, p=0.001), while the intra-rater reliability was more variable (0.2-0.70). Conclusions: The findings indicated that the evaluation of static structures like lesion size rating, the antero-posterior supraglottic compression and the glottal closure is a relatively reliable method. The evaluation of dynamic structures, like the vocal fold vibratory amplitude measure was, however, found to be of low reliability.
Authors:
Edwin M L Yiu; Vivian C Y Lau; Estella P-M Ma; Karen M-K Chan; Elizabeth Barrett
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-11-12
Journal Detail:
Title:  The Laryngoscope     Volume:  -     ISSN:  1531-4995     ISO Abbreviation:  Laryngoscope     Publication Date:  2013 Nov 
Date Detail:
Created Date:  2013-11-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8607378     Medline TA:  Laryngoscope     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 The American Laryngological, Rhinological, and Otological Society, Inc.
Affiliation:
Voice Research Laboratory, Division of Speech & Hearing Sciences, The University of Hong Kong, Pokfulam, HongKong.
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