Mucosal wave: A normophonic study across visualization techniques
Mucosal wave: A normophonic study across visualization techniques
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DOI：
10.1016/j.jvoice.2006.08.006
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发表时间：
2008-01-01
期刊：
影响因子：
2.2
通讯作者：
Deliyski, Dirnitar D.
中科院分区：
文献类型：
--
作者：
Shaw, Heather S.;Deliyski, Dirnitar D.
声带振动的可视化对声音障碍患者的准确诊断和最佳治疗至关重要。最近，科学和轶事报道已经证明，在正常声道说话者中，粘膜波幅度和对称性的诊断相关特征的变化量增加。本研究的目的是初步确定通过标准和新技术评估的正常声道说话者的粘膜波幅度和对称性的变化，并比较模态和按压发声的结果。采用跨可视化方法的多基线相关设计方法。通过频闪检查、高速视频内窥镜（HSV）回放、粘膜波回放和粘膜波心电图回放来判断52位同声道扬声器的粘膜波存在、大小和对称性。结果表明，在正常发音者的模态和压音过程中，粘膜波的非典型幅度和对称性普遍存在，不同技术之间存在差异，判断与习惯基频之间存在关系。考虑到正常发音人群中粘膜波大小和对称性变化的普遍存在，过度诊断可能不需要谨慎。各种可视化技术提供了独特的信息，表明将全视图和心电图可视化技术结合使用可能是有益的。目前商用HSV系统的一个主要限制是帧率，通常限制在每秒2000帧，这对于大多数女性习惯性发音来说似乎是不够的。
Visualization of vocal fold vibration is essential for accurate diagnoses and optimal treatment of persons with voice disorders. Recently, scientific and anecdotal reports have evidenced an increased amount of variation in the diagnostically relevant features of extent and symmetry of mucosal wave magnitude in normophonic speakers. The objectives of this study were to preliminarily ascertain the variation in mucosal wave magnitude and symmetry for normophonic speakers as assessed via standard and novel techniques, and compare findings across modal and pressed phonations. A correlational design with a multiple baseline across visualization methods approach was used. Mucosal wave presence, magnitude, and symmetry from 52 normophonic speakers were judged via stroboscopy, high-speed videoendoscopy (HSV) playback, mucosal wave playback, and mucosal wave kymography playback. Results demonstrate a prevalence of atypical magnitude and symmetry of mucosal wave during modal and pressed phonations by normophonic persons, differences across techniques, and a relationship between judgments and habitual fundamental frequency. Given the prevalence of mucosal wave magnitude and symmetry variations in the normophonic population, overdiagnosis may be possible without caution. The various visualization techniques provided unique information suggesting that it may be beneficial to use both full view and kymographic visualization techniques in combination. A major restriction of the current commercial HSV systems is the frame rate, typically limited to 2000 frames per second, which appears insufficient for most female habitual phonations.