Department of Otolaryngology, Head and Neck Oncology, Medical University of Lodz, Lodz, Poland.
Diagnova Technologies, Wroclaw Technology Park, Wroclaw, Poland.
Sci Rep. 2021 Oct 14;11(1):20480. doi: 10.1038/s41598-021-99948-9.
High-Speed Videoendoscopy (HSV) is becoming a robust tool for the assessment of vocal fold vibration in laboratory investigation and clinical practice. We describe the first successful application of flexible High Speed Videoendoscopy with innovative laser light source conducted in clinical settings. The acquired image and simultaneously recorded audio data are compared to the results obtained by means of a rigid endoscope. We demonstrated that the HSV recordings with fiber-optic laryngoscope have enabled obtaining consistently bright, color images suitable for parametrization of vocal fold oscillation similarly as in the case of the HSV data obtained from a rigid laryngoscope. The comparison of period and amplitude perturbation parameters calculated on the basis of image and audio data acquired from flexible and rigid HSV recording objectively confirm that flexible High-Speed Videoendoscopy is a more suitable method for examination of natural phonation. The HSV-based measures generated from this kymographic analysis are arguably a superior representation of the vocal fold vibrations than the acoustic analysis because their quantification is independent of the vocal tract influences. This experimental study has several implications for further research in the field of HSV application in clinical assessment of glottal pathologies nature and its effect on vocal folds vibrations.
高速视频内镜（HSV）在实验室研究和临床实践中已成为评估声带振动的有力工具。我们描述了首例在临床环境中使用创新激光光源的柔性高速视频内镜的成功应用。所获得的图像和同时记录的音频数据与通过刚性内窥镜获得的结果进行了比较。我们证明，纤维光学喉镜的 HSV 记录能够获得始终明亮、适合参数化声带振动的彩色图像，这与从刚性喉镜获得的 HSV 数据的情况相同。基于从柔性和刚性 HSV 记录中获取的图像和音频数据计算的周期和幅度微扰参数的比较客观地证实，柔性高速视频内镜是检查自然发声的更合适方法。这种运动描记分析生成的 HSV 测量值比声学分析更能代表声带振动，因为它们的量化与声道影响无关。这项实验研究对 HSV 在声带病变性质及其对声带振动影响的临床评估中的应用领域的进一步研究具有重要意义。
