Cargando…
Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode
Objective. Different bony structures can affect the function of the velopharyngeal muscles. Asian populations differ morphologically, including the morphologies of their bony structures. The purpose of this study was to compare the velopharyngeal structures during speech in two Asian populations: Ja...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4529892/ https://www.ncbi.nlm.nih.gov/pubmed/26273584 http://dx.doi.org/10.1155/2015/126264 |
_version_ | 1782384834612559872 |
---|---|
author | Nunthayanon, Kulthida Honda, Ei-ichi Shimazaki, Kazuo Ohmori, Hiroko Inoue-Arai, Maristela Sayuri Kurabayashi, Tohru Ono, Takashi |
author_facet | Nunthayanon, Kulthida Honda, Ei-ichi Shimazaki, Kazuo Ohmori, Hiroko Inoue-Arai, Maristela Sayuri Kurabayashi, Tohru Ono, Takashi |
author_sort | Nunthayanon, Kulthida |
collection | PubMed |
description | Objective. Different bony structures can affect the function of the velopharyngeal muscles. Asian populations differ morphologically, including the morphologies of their bony structures. The purpose of this study was to compare the velopharyngeal structures during speech in two Asian populations: Japanese and Thai. Methods. Ten healthy Japanese and Thai females (five each) were evaluated with a 3-Tesla (3 T) magnetic resonance imaging (MRI) scanner while they produced vowel-consonant-vowel syllable (/asa/). A gradient-echo sequence, fast low-angle shot with segmented cine and parallel imaging technique was used to obtain sagittal images of the velopharyngeal structures. Results. MRI was carried out in real time during speech production, allowing investigations of the time-to-time changes in the velopharyngeal structures. Thai subjects had a significantly longer hard palate and produced shorter consonant than Japanese subjects. The velum of the Thai participants showed significant thickening during consonant production and their retroglossal space was significantly wider at rest, whereas the dimensional change during task performance was similar in the two populations. Conclusions. The 3 T MRI movie method can be used to investigate velopharyngeal function and diagnose velopharyngeal insufficiency. The racial differences may include differences in skeletal patterns and soft-tissue morphology that result in functional differences for the affected structures. |
format | Online Article Text |
id | pubmed-4529892 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-45298922015-08-13 Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode Nunthayanon, Kulthida Honda, Ei-ichi Shimazaki, Kazuo Ohmori, Hiroko Inoue-Arai, Maristela Sayuri Kurabayashi, Tohru Ono, Takashi Biomed Res Int Research Article Objective. Different bony structures can affect the function of the velopharyngeal muscles. Asian populations differ morphologically, including the morphologies of their bony structures. The purpose of this study was to compare the velopharyngeal structures during speech in two Asian populations: Japanese and Thai. Methods. Ten healthy Japanese and Thai females (five each) were evaluated with a 3-Tesla (3 T) magnetic resonance imaging (MRI) scanner while they produced vowel-consonant-vowel syllable (/asa/). A gradient-echo sequence, fast low-angle shot with segmented cine and parallel imaging technique was used to obtain sagittal images of the velopharyngeal structures. Results. MRI was carried out in real time during speech production, allowing investigations of the time-to-time changes in the velopharyngeal structures. Thai subjects had a significantly longer hard palate and produced shorter consonant than Japanese subjects. The velum of the Thai participants showed significant thickening during consonant production and their retroglossal space was significantly wider at rest, whereas the dimensional change during task performance was similar in the two populations. Conclusions. The 3 T MRI movie method can be used to investigate velopharyngeal function and diagnose velopharyngeal insufficiency. The racial differences may include differences in skeletal patterns and soft-tissue morphology that result in functional differences for the affected structures. Hindawi Publishing Corporation 2015 2015-07-26 /pmc/articles/PMC4529892/ /pubmed/26273584 http://dx.doi.org/10.1155/2015/126264 Text en Copyright © 2015 Kulthida Nunthayanon et al. https://creativecommons.org/licenses/by/3.0/ 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 Nunthayanon, Kulthida Honda, Ei-ichi Shimazaki, Kazuo Ohmori, Hiroko Inoue-Arai, Maristela Sayuri Kurabayashi, Tohru Ono, Takashi Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode |
title | Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode |
title_full | Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode |
title_fullStr | Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode |
title_full_unstemmed | Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode |
title_short | Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode |
title_sort | differences in velopharyngeal structure during speech among asians revealed by 3-tesla magnetic resonance imaging movie mode |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4529892/ https://www.ncbi.nlm.nih.gov/pubmed/26273584 http://dx.doi.org/10.1155/2015/126264 |
work_keys_str_mv | AT nunthayanonkulthida differencesinvelopharyngealstructureduringspeechamongasiansrevealedby3teslamagneticresonanceimagingmoviemode AT hondaeiichi differencesinvelopharyngealstructureduringspeechamongasiansrevealedby3teslamagneticresonanceimagingmoviemode AT shimazakikazuo differencesinvelopharyngealstructureduringspeechamongasiansrevealedby3teslamagneticresonanceimagingmoviemode AT ohmorihiroko differencesinvelopharyngealstructureduringspeechamongasiansrevealedby3teslamagneticresonanceimagingmoviemode AT inouearaimaristelasayuri differencesinvelopharyngealstructureduringspeechamongasiansrevealedby3teslamagneticresonanceimagingmoviemode AT kurabayashitohru differencesinvelopharyngealstructureduringspeechamongasiansrevealedby3teslamagneticresonanceimagingmoviemode AT onotakashi differencesinvelopharyngealstructureduringspeechamongasiansrevealedby3teslamagneticresonanceimagingmoviemode |