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Effective Velopharyngeal Ratio: A More Clinically Relevant Measure of Velopharyngeal Function
Journal of Speech Language and Hearing Research Pub Date : 2020-09-25 , DOI: 10.1044/2020_jslhr-20-00305
Abigail E Haenssler 1 , Xiangming Fang 2 , Jamie L Perry 1
Affiliation  

Purpose Velopharyngeal (VP) ratios are commonly used to study normal VP anatomy and normal VP function. An effective VP (EVP) ratio may be a more appropriate indicator of normal parameters for speech. The aims of this study are to examine if the VP ratio is preserved across the age span or if it varies with changes in the VP portal and to analyze if the EVP ratio is more stable across the age span. Method Magnetic resonance imaging was used to analyze VP variables of 270 participants. For statistical analysis, the participants were divided into the following groups based on age: infants, children, adolescents, and adults. Analyses of variance and a Games–Howell post hoc test were used to compare variables between groups. Results There was a statistically significant difference ( p < .05) in all measurements between the age groups. Pairwise comparisons reported statistically significant adjacent group differences ( p < .05) for velar length, VP ratio, effective velar length, adenoid depth, and pharyngeal depth. No statistically significant differences between adjacent age groups were reported for the EVP ratio. Conclusions Results from this study report the EVP ratio was not statistically significant between adjacent age groups, whereas the VP ratio was statistically significant between adjacent age groups. This study suggests that the EVP ratio is more correlated to VP function than the VP ratio and provides a more stable and consistent ratio of VP function across the age span.

中文翻译:

有效腭咽比:一种更具临床相关性的腭咽功能测量方法

目的腭咽 (VP) 比率通常用于研究正常的 VP 解剖结构和正常的 VP 功能。有效 VP (EVP) 比率可能是语音正常参数的更合适的指标。本研究的目的是检查 VP 比率是否在整个年龄范围内保持不变,或者是否随着 VP 门户的变化而变化,并分析 EVP 比率在整个年龄范围内是否更稳定。 方法使用磁共振成像分析 270 名参与者的 VP 变量。为了进行统计分析,参与者根据年龄分为以下几组:婴儿、儿童、青少年和成人。方差分析和 Games-Howell 事后检验用于比较组间变量。 结果存在统计学上的显着差异(p< .05) 在年龄组之间的所有测量中。成对比较报告了具有统计显着性的相邻组差异(p< .05) 用于软腭长度、VP 比、有效软腭长度、腺样体深度和咽部深度。相邻年龄组之间的 EVP 比率没有统计学上的显着差异。 结论这项研究的结果表明,相邻年龄组之间的 EVP 比率没有统计学意义,而相邻年龄组之间的 VP 比率有统计学意义。这项研究表明,EVP 比率与 VP 功能的相关性高于 VP 比率,并且在整个年龄范围内提供更稳定和一致的 VP 功能比率。
更新日期:2020-09-25
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