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Tongue displacement: visualization with rapid tagged magnetization-prepared MR imaging
M Niitsu1, M Kumada, N G Campeau
1Department of Radiology, University of Tsukuba, Ibarki, Japan.
Radiology
|May 1, 1994
Summary
This study introduces a fast magnetic resonance imaging technique to visualize tongue muscle movements during speech. The method clearly shows tongue muscle displacement, aiding in the study of speech sound disorders.
Area of Science:
- Medical Imaging
- Speech Science
- Anatomy
Background:
- Understanding tongue muscle dynamics is crucial for speech production.
- Existing imaging techniques may lack the speed or resolution to capture rapid tongue movements during phonation.
Purpose of the Study:
- To present a novel magnetic resonance imaging (MRI) technique for visualizing tongue muscle displacement.
- To assess the feasibility of this technique for studying speech articulation.
Main Methods:
- Utilized tagged magnetization-prepared gradient-recalled echo (MP-GRE) MRI.
- Acquired images in under 2 seconds per articulation without cardiac or respiratory gating.
- Studied three healthy male volunteers articulating specific sounds.
Main Results:
- The MRI technique successfully depicted tongue muscle displacement and tag alterations during phonation.
- Images were acquired rapidly and without gating, demonstrating practicality.
Conclusions:
- This tagged MRI technique offers a clear and efficient method for visualizing tongue muscle motion.
- The technique holds potential for advancing the study of phoniatric pathophysiology and speech disorders.