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Application of magnetic resonance imaging movie to assess articulatory movement
Author(s) -
Inoue MS,
Ono T,
Honda E,
Kurabayashi T,
Ohyama K
Publication year - 2006
Publication title -
orthodontics and craniofacial research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 55
eISSN - 1601-6343
pISSN - 1601-6335
DOI - 10.1111/j.1601-6343.2006.00366.x
Subject(s) - articulation (sociology) , movement (music) , magnetic resonance imaging , consonant , tongue , temporal resolution , computer science , speech recognition , medicine , acoustics , radiology , physics , vowel , pathology , quantum mechanics , politics , political science , law
Structured Abstract Authors – Inoue MS, Ono T, Honda E, Kurabayashi T, Ohyama K Objective – To introduce the technique of magnetic resonance imaging (MRI) movie and to propose its feasibility for investigating articulatory movement. Subjects – Five healthy adult females participated in the study. Methods – Dynamic changes in oropharyngeal structures were assessed with MRI movie during the articulation of a bilabial consonant. Results – Movements of the velum and tongue at a time resolution of 30 ms were complex at the tip of the tongue and the anterior part of the velum. These movements that were seen with a time resolution of 30 ms could not be interpolated or in any way derived from the results obtained with a time resolution of 120 ms. Conclusion – The results suggest that MRI movie may be useful in the evaluation of articulation. It is important to reduce the time resolution to 30 ms to obtain images of articulators.