Vocal Tract Adjustments of Dysphonic and Non-Dysphonic Women Pre- and Post-Flexible Resonance Tube in Water Exercise: A Quantitative MRI Study

Vocal Tract Adjustments of Dysphonic and Non-Dysphonic Women Pre- and Post-Flexible Resonance Tube in Water Exercise: A Quantitative MRI Study

Author Yamasaki, Rosiane Google Scholar
Murano, Emi Z. Google Scholar
Gebrim, Eloisa Google Scholar
Hachiya, Adriana Google Scholar
Montagnoli, Arlindo Google Scholar
Behlau, Mara Autor UNIFESP Google Scholar
Tsuji, Domingos Google Scholar
Abstract Objective. To compare vocal tract (VT) adjustments of dysphonic and non-dysphonic women before and after flexible resonance tube in water exercise (FRTWE) at rest and during phonation using magnetic resonance imaging. Study Design. Prospective study. Methods. Twenty women, aged 20-40 years, 10 dysphonic with vocal nodules (VNG) and 10 controls (CG), underwent four sets of sagittal VT MRI: two pre-FRTWE, at rest and during phonation, and two post-FRTWE, during phonation and at rest. The subjects performed 3 minutes of exercise. Nine parameters at rest and 21 during phonation were performed. Results. Pre-FRTWE, eight significant differences were found, three at rest and five during phonation: at rest - laryngeal vestibule area, distance from epiglottis to pharyngeal posterior wall (PPW) and interarytenoid complex length were smaller in the VNG

during phonation - laryngeal vestibule area, angle between PPW and vocal fold (VF), epiglottis to PPW, and anterior commissure of the larynx to laryngeal posterior wall were smaller in the VNG

tongue area was larger in the VNG. Post-FRTWE, only three significant differences were found, two during phonation and one at rest: during phonation - angle between PPW and VF and the membranous portion of the VF length were smaller in the VNG

at rest - distance from epiglottis to PPW was smaller in the VNG. Conclusions. Results suggest that the habitual VT adjustments of dysphonic and non-dysphonic women are different at rest and during phonation. The FRTWE promoted positive VT changes in the VNG, reducing the intergroup differences.
Keywords Dysphonia
Vocal nodules
Vocal tract
Flexible resonance tube in water exercise
MRI measurements
xmlui.dri2xhtml.METS-1.0.item-coverage New York
Language English
Date 2017
Published in Journal Of Voice. New York, v. 31, n. 4, p. 442-454, 2017.
ISSN 0892-1997 (Sherpa/Romeo, impact factor)
Publisher Mosby-Elsevier
Extent 442-454
Origin http://dx.doi.org/10.1016/j.jvoice.2016.10.015
Access rights ACESSO RESTRITO
Type Article
Web of Science ID WOS:000406147000008
URI https://repositorio.unifesp.br/handle/11600/53567

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