Magnetic Resonance Imaging of the Levator Veli Palatini Muscle in Speakers With Repaired Cleft Palate
Ha, Seunghee
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https://hdl.handle.net/2142/85216
Description
Title
Magnetic Resonance Imaging of the Levator Veli Palatini Muscle in Speakers With Repaired Cleft Palate
Author(s)
Ha, Seunghee
Issue Date
2006
Doctoral Committee Chair(s)
Kuehn, David P.
Department of Study
Speech and Hearing Science
Discipline
Speech and Hearing Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Health Sciences, Speech Pathology
Language
eng
Abstract
The results showed that the configurations of the LVP muscle were various among subjects with cleft palate and different from those of normal velopharyngeal anatomy. The distance, length, and thickness of the levator muscle were smaller than those of normal subjects. Angles of origin of the muscle were variable among speakers with cleft palate. Also, the results showed systematic changes of the LVP muscle configuration in terms of vowel and consonant types. Levator muscle angle of origin and length became progressively smaller from rest, nasal consonants, low vowels, high vowels, and fricatives. The speakers with cleft palate showed longer temporal characteristics of nasalization than normal speakers. This study contributes to a better understanding of cleft palate anatomy and should eventually play an essential role in providing better clinical treatment to speakers with cleft palate.
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