Taipei Medical University

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Tsai C-Y, Peng C-L, Yeh W-C
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------>journal_name=Annual Meeting of Taiwan Association of Orthodontics,??
------>paper_name=Tongue movement during articalation: an M-mode ultrasound study.
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------>fullAbstract=To observe and estimate the movement of the tongue, ultrasonic investigation is the most harmless real-time monitoring procedure for analyzing articulatory movements. Color Doppler ultrasonic imaging is special in that it can only sample a moving target, and it can indicate the velocity and direction of the target by color and brightness in real time. This study assessed and demonstrated the validity of M-mode color Doppler ultrasonic imaging to observe the movements of the tongue during syllable repetition tasks performed by normal subjects and dysarthric patients, those affected by amyotrophic lateral sclerosis, cerebellar ataxia, Parkinsonism, and polymyopathy. When the transducer was set below the jaw, upward movement was indicated by a blue signal and downward movement was indicated by a red one on the screen of the ultrasound machine. We also measured the velocity of the tongue by contrast scale classified by 15 degrees. Thus, we could observe vertical tongue movement by a color-coded pattern after quantitative analysis. The Doppler signal patterns of normal subjects were verified by simultaneous video x-ray fluorography recordings. The findings for dysarthric patients corresponded well with previously reported features analyzed by other methods. Therefore, color Doppler ultrasonic imaging of the tongue is a useful procedure to researchers for clinical speech and voice studies.
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------>authors=Tsai C-Y, Peng C-L, Yeh W-C
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------>updateTitle=M-mode color Doppler ultrasonic imaging of vertical tongue movement during articulatory movement.
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------>publish_year=1999
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z