| MRI Anatomical and Morphological Differences in the Vocal Tract Between Dysphonic and Normal Adult Women. | |
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MedLine Citation:
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PMID: 21256708 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: To analyze the vocal tract morphometry of women with vocal nodules (VN) compared with normal subjects by means of magnetic resonance imaging (MRI) at rest position. STUDY DESIGN: Prospective study. METHODS: The present research included 20 young adult women, aged 18-40 years: 10 dysphonic patients with VN and 10 normal subjects. All participants were tested using MRI; 12 measurements of the vocal tract were performed: nine in median sagittal section and three in axial section. RESULTS: The 12 measurements were smaller in the dysphonic group; statistical significance was obtained for three parameters: in the sagittal plane, the laryngeal vestibule area was significantly smaller in the dysphonic group, with P=0.012∗ (* = statistical significance); in the axial section, the distance between the right and left vocal processes of the arytenoids' cartilages and the distance between the anterior commissure of the glottis and the laryngeal posterior wall were also significantly lower in the dysphonic group, with P=0.036∗ and 0.010∗, respectively. Significant differences in the vocal tract morphometry of individuals with VN were observed compared with normal subjects, at rest position. CONCLUSIONS: Results obtained from this study suggest that patients with VN may present a constantly increased tension of the laryngeal muscles, even at rest; moreover, reduced anterior-posterior dimension of the larynx may be a morphological characteristic of patients with VN. |
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Authors:
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Rosiane Yamasaki; Mara Behlau; Osíris de Oliveira Camponês do Brasil; Hélio Yamashita |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-1-21 |
Journal Detail:
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Title: Journal of voice : official journal of the Voice Foundation Volume: - ISSN: 1557-8658 ISO Abbreviation: - Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-1-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8712262 Medline TA: J Voice Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 The Voice Foundation. Published by Mosby, Inc. All rights reserved. |
Affiliation:
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Department of Speech-Language Pathology and Audiology, Federal University of São Paulo-UNIFESP, São Paulo, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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