Suppr超能文献

MRI 电影在观察擦音 /s/和爆破音 /t/发音运动中的应用。

Application of MRI movie for observation of articulatory movement during a fricative /s/ and a plosive /t/.

机构信息

Tokyo Medical and Dental University, Japan.

出版信息

Angle Orthod. 2011 Mar;81(2):237-44. doi: 10.2319/060210-301.1.

Abstract

OBJECTIVE

To use an accurate method of tooth visualization in magnetic resonance imaging (MRI) movie for the observation of spatio-temporal relationships among articulators.

MATERIALS AND METHODS

The subjects were two volunteers. Each subject repeated a vowel-consonant-vowel syllable (ie, /asa/; /ata/), and the run was measured using a gradient echo sequence. A custom-made clear retainer filled with the jelly form of ferric ammonium citrate was then fit onto the dental arch, and a T1-weighted turbo-spin-echo sequence was taken. Landmarks were used for superimposition of the incisor boundary onto sequential images of MRI movie. Tracings were conducted to observe the spatio-temporal relationships among articulators.

RESULTS

The incisor boundary was clearly visible in the magnetic resonance images. After superimposition, the contact distance of the tongue to palate/incisor was found to be longer during /t/-articulation than during /s/-articulation. There were prominent differences in images with and without tooth superimposition in the front oral cavity.

CONCLUSIONS

The method could distinctly extract a tooth boundary in MRI. Detailed configurational relationships between the tongue and tooth were observed during the production of a fricative and a plosive in MRI movie using this method.

摘要

目的

使用磁共振成像(MRI)电影中精确的牙齿可视化方法来观察下颌运动各部件之间的时空关系。

材料与方法

研究对象为 2 名志愿者。每位志愿者重复发一个元音-辅音-元音音节(即/asa/、/ata/),并采用梯度回波序列进行测量。然后将一个特制的透明保持器装满柠檬酸铁铵凝胶,贴合在牙弓上,再进行 T1 加权涡轮自旋回波序列扫描。使用标志点将切牙边界叠加到 MRI 电影的连续图像上。进行追踪以观察下颌运动各部件之间的时空关系。

结果

在磁共振图像上可以清晰地看到切牙边界。叠加后发现,在/t/-发音时,舌与上腭/切牙的接触距离比在/s/-发音时更长。在前口腔中,有和没有牙齿叠加的图像有明显差异。

结论

该方法可以在 MRI 中明显提取牙齿边界。使用该方法可以在 MRI 电影中观察到摩擦音和爆破音发音时舌与牙齿之间的详细结构关系。

相似文献

2
Differential articulatory movements during Japanese /s/ and /t/ as revealed by MR image sequences with tooth visualization.
Arch Oral Biol. 2012 Jun;57(6):749-59. doi: 10.1016/j.archoralbio.2011.11.002. Epub 2011 Dec 3.
3
Use of an advanced 3-T MRI movie to investigate articulation.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2015 Jun;119(6):684-94. doi: 10.1016/j.oooo.2015.03.003. Epub 2015 Mar 25.
4
Application of magnetic resonance imaging movie to assess articulatory movement.
Orthod Craniofac Res. 2006 Aug;9(3):157-62. doi: 10.1111/j.1601-6343.2006.00366.x.
7
Improved imaging of lingual articulation using real-time multislice MRI.
J Magn Reson Imaging. 2012 Apr;35(4):943-8. doi: 10.1002/jmri.23510. Epub 2011 Nov 29.
8
Motor coordination of articulators depends on the place of articulation.
Behav Brain Res. 2009 May 16;199(2):307-16. doi: 10.1016/j.bbr.2008.12.008. Epub 2008 Dec 13.
10
Interspeaker variability in hard palate morphology and vowel production.
J Speech Lang Hear Res. 2013 Dec;56(6):S1924-33. doi: 10.1044/1092-4388(2013/12-0211).

引用本文的文献

1
Adaptive brain activity changes during tongue movement with palatal coverage from fMRI data.
Sci Rep. 2021 Jul 6;11(1):13907. doi: 10.1038/s41598-021-93332-3.
2
Principles of the magnetic resonance imaging movie method for articulatory movement.
Oral Radiol. 2019 May;35(2):91-100. doi: 10.1007/s11282-018-0347-7. Epub 2018 Sep 14.
4
Influence of orthodontic appliance-derived artifacts on 3-T MRI movies.
Prog Orthod. 2018 Feb 19;19(1):7. doi: 10.1186/s40510-018-0204-6.
5
Advances in real-time magnetic resonance imaging of the vocal tract for speech science and technology research.
APSIPA Trans Signal Inf Process. 2016;5. doi: 10.1017/ATSIP.2016.5. Epub 2016 Mar 31.

本文引用的文献

1
Application of MRI and biomedical engineering in speech production study.
Comput Methods Biomech Biomed Engin. 2009 Dec;12(6):671-81. doi: 10.1080/10255840902865633.
2
Motor coordination of articulators depends on the place of articulation.
Behav Brain Res. 2009 May 16;199(2):307-16. doi: 10.1016/j.bbr.2008.12.008. Epub 2008 Dec 13.
5
Application of magnetic resonance imaging movie to assess articulatory movement.
Orthod Craniofac Res. 2006 Aug;9(3):157-62. doi: 10.1111/j.1601-6343.2006.00366.x.
8
Contrast-enhanced dental MRI for visualization of the teeth and jaw.
Magn Reson Med. 2004 Jul;52(1):174-6. doi: 10.1002/mrm.20125.
9
An approach to real-time magnetic resonance imaging for speech production.
J Acoust Soc Am. 2004 Apr;115(4):1771-6. doi: 10.1121/1.1652588.
10
Vowel category dependence of the relationship between palate height, tongue height, and oral area.
J Speech Lang Hear Res. 2003 Jun;46(3):738-53. doi: 10.1044/1092-4388(2003/059).

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验