Abstract
The purpose of this project was to estimate how well one can predict measures of velopharyngeal opening during cinefluorographic films from measures taken from single-exposure, still, x-ray films. Both types of films were obtained for 37 subjects with surgically repaired cleft palate. Single-exposure films were taken during sustained /u/, sustained /s/, and at rest. Cinefluorographic films were taken during a variety of speech tasks. Obtained correlations between measurements of velopharyngeal opening taken from still and cine films were in the order of 0.70, and mean differences between the two types of measurements were not significant for still /s/, but were significant for still /u/. If only one single-exposure film is to be used for estimating velopharyngeal opening shown during cinefluorography, a still film taken during sustained /s/ seems the best choice.
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