[Quantitative diagnosis of hypernasality in cleft lip and palate patients by computerized nasal quality assessment].
In patients with cleft lip and palate (CLP), the assessment of velopharyngeal morphology and function and the quantitative analysis of perceptual consequences of velopharyngeal insufficiency are of major importance regarding the effective planning of velopharyngoplasties for speech improvement. The NasalView, a new instrument for the objective assessment of rhinophonia, is presented. The NasalView measures nasalance, the relative sound pressure level of the nasal signal in speech, expressed as a percentage. In order to evaluate the effectiveness of the computerised measurement of nasalance, 156 patients with surgically treated CLP were examined. The NasalView differentiated with high sensitivity and specificity between patients with normal nasal resonance and patients with varying degrees of hypernasality. To illustrate the importance of the NasalView for making the decision for a velopharyngoplasty, a single case is presented.
Klinik und Poliklinik für Mund-Kiefer-Gesichtschirurgie, Technische Universität München. tbressma@mkg.med.tu-muenchen.de
T
T
Bressmann
R
R
Sader
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S
Awan
R
R
Busch
H F
HF
Zeilhofer
H H
HH
Horch
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002971:Cleft Lip / Q000175:diagnosis* / Q000534:rehabilitation; D002972:Cleft Palate / Q000175:diagnosis*; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012984:Software; D013018:Sound Spectrography / Q000295:instrumentation*; D013064:Speech Disorders / Q000175:diagnosis* / Q000534:rehabilitation; D014681:Velopharyngeal Insufficiency / Q000175:diagnosis* / Q000534:rehabilitation; D014832:Voice Disorders / Q000175:diagnosis* / Q000534:rehabilitation; D014833:Voice Quality
Quantitative Hypernasalitätsdiagnostik bei LKG-Patienten durch computerisierte Nasalanzmessung.