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[The phasic imaging of velopharyngeal sphincter movements]
W Angerstein1, C Neuschaefer-Rube, B Wein
1Klinik für Phoniatrie und Pädaudiologie, RWTH Aachen.
Fortschritte Der Kieferorthopadie
|August 1, 1994
Summary
This study used nasoendoscopy to analyze velopharyngeal function during swallowing in healthy and insufficient patients. Temporal imaging revealed distinct motion patterns, aiding therapeutic decisions for velopharyngeal disorders.
Area of Science:
- Speech-Language Pathology
- Otolaryngology
- Medical Imaging
Background:
- Velopharyngeal insufficiency (VPI) causes hypernasality due to inadequate closure.
- Assessing velopharyngeal function is crucial for diagnosing and treating VPI.
Purpose of the Study:
- To evaluate velopharyngeal function during swallowing and speech using nasoendoscopy.
- To introduce a temporal imaging technique for differentiating normal and abnormal velopharyngeal movements.
Main Methods:
- Nasoendoscopy with a flexible fiber optic device was performed on a healthy subject and a VPI patient.
- Subjects swallowed water and articulated the /k/ consonant.
- Videotaped images were compiled into a temporal image for motion analysis.
Main Results:
- The temporal imaging technique allowed clear differentiation between physiological and disturbed velopharyngeal motion patterns.
- Distinct movement patterns were observed between the healthy and VPI subjects.
Conclusions:
- Temporal imaging of velopharyngeal function provides a comprehensive method for analysis.
- This technique can guide therapeutic interventions for patients with VPI and related speech disorders.