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

Autor: Yamasaki R; Department of Otorhinolaryngology, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil. Electronic address: r.yamasaki@uol.com.br., Murano EZ; Department of Otorhinolaryngology, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil., Gebrim E; Department of Radiology, InRad, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil., Hachiya A; Department of Otorhinolaryngology, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil., Montagnoli A; Department of Electrical Engineering, Universidade de São Paulo-São Carlos, Brazil., Behlau M; Department of Speech-Language Pathology and Audiology, Universidade Federal de São Paulo-UNIFESP, Brazil; Centro de Estudos da Voz-CEV, São Paulo, Brazil., Tsuji D; Department of Otorhinolaryngology, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Journal of voice : official journal of the Voice Foundation [J Voice] 2017 Jul; Vol. 31 (4), pp. 442-454. Date of Electronic Publication: 2016 Dec 22.
DOI: 10.1016/j.jvoice.2016.10.015
Abstrakt: 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.
(Copyright © 2017 The Voice Foundation. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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