Cargando…
Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models
Sulcus vocalis is an indentation parallel to the edge of vocal fold, which may extend into the cover and ligament layer of the vocal fold or deeper. The effects of sulcus vocalis depth d on phonation and the vocal cord vibrations are investigated in this study. The three-dimensional laryngeal models...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8052148/ https://www.ncbi.nlm.nih.gov/pubmed/33897828 http://dx.doi.org/10.1155/2021/6662625 |
_version_ | 1783679868232269824 |
---|---|
author | Zhou, Changwei Zhang, Lili Wu, Yuanbo Zhang, Xiaojun Wu, Di Tao, Zhi |
author_facet | Zhou, Changwei Zhang, Lili Wu, Yuanbo Zhang, Xiaojun Wu, Di Tao, Zhi |
author_sort | Zhou, Changwei |
collection | PubMed |
description | Sulcus vocalis is an indentation parallel to the edge of vocal fold, which may extend into the cover and ligament layer of the vocal fold or deeper. The effects of sulcus vocalis depth d on phonation and the vocal cord vibrations are investigated in this study. The three-dimensional laryngeal models were established for healthy vocal folds (0 mm) and different types of sulcus vocalis with the typical depth of 1 mm, 2 mm, and 3 mm. These models with fluid-structure interaction (FSI) are computed numerically by sequential coupling method, which includes an immersed boundary method (IBM) for modelling the glottal airflow, a finite-element method (FEM) for modelling vocal fold tissue. The results show that a deeper sulcus vocalis in the cover layer decreases the vibrating frequency of vocal folds and expands the prephonatory glottal half-width which increases the phonation threshold pressure. The larger sulcus vocalis depth makes vocal folds difficult to vibrate and phonate. The effects of sulcus vocalis depth suggest that the feature such as phonation threshold pressure could assist in the detection of healthy vocal folds and different types of sulcus vocalis. |
format | Online Article Text |
id | pubmed-8052148 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-80521482021-04-22 Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models Zhou, Changwei Zhang, Lili Wu, Yuanbo Zhang, Xiaojun Wu, Di Tao, Zhi Appl Bionics Biomech Research Article Sulcus vocalis is an indentation parallel to the edge of vocal fold, which may extend into the cover and ligament layer of the vocal fold or deeper. The effects of sulcus vocalis depth d on phonation and the vocal cord vibrations are investigated in this study. The three-dimensional laryngeal models were established for healthy vocal folds (0 mm) and different types of sulcus vocalis with the typical depth of 1 mm, 2 mm, and 3 mm. These models with fluid-structure interaction (FSI) are computed numerically by sequential coupling method, which includes an immersed boundary method (IBM) for modelling the glottal airflow, a finite-element method (FEM) for modelling vocal fold tissue. The results show that a deeper sulcus vocalis in the cover layer decreases the vibrating frequency of vocal folds and expands the prephonatory glottal half-width which increases the phonation threshold pressure. The larger sulcus vocalis depth makes vocal folds difficult to vibrate and phonate. The effects of sulcus vocalis depth suggest that the feature such as phonation threshold pressure could assist in the detection of healthy vocal folds and different types of sulcus vocalis. Hindawi 2021-04-08 /pmc/articles/PMC8052148/ /pubmed/33897828 http://dx.doi.org/10.1155/2021/6662625 Text en Copyright © 2021 Changwei Zhou et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Zhou, Changwei Zhang, Lili Wu, Yuanbo Zhang, Xiaojun Wu, Di Tao, Zhi Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models |
title | Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models |
title_full | Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models |
title_fullStr | Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models |
title_full_unstemmed | Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models |
title_short | Effects of Sulcus Vocalis Depth on Phonation in Three-Dimensional Fluid-Structure Interaction Laryngeal Models |
title_sort | effects of sulcus vocalis depth on phonation in three-dimensional fluid-structure interaction laryngeal models |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8052148/ https://www.ncbi.nlm.nih.gov/pubmed/33897828 http://dx.doi.org/10.1155/2021/6662625 |
work_keys_str_mv | AT zhouchangwei effectsofsulcusvocalisdepthonphonationinthreedimensionalfluidstructureinteractionlaryngealmodels AT zhanglili effectsofsulcusvocalisdepthonphonationinthreedimensionalfluidstructureinteractionlaryngealmodels AT wuyuanbo effectsofsulcusvocalisdepthonphonationinthreedimensionalfluidstructureinteractionlaryngealmodels AT zhangxiaojun effectsofsulcusvocalisdepthonphonationinthreedimensionalfluidstructureinteractionlaryngealmodels AT wudi effectsofsulcusvocalisdepthonphonationinthreedimensionalfluidstructureinteractionlaryngealmodels AT taozhi effectsofsulcusvocalisdepthonphonationinthreedimensionalfluidstructureinteractionlaryngealmodels |