Pimenta Regina Aparecida, Dájer María Eugenia, Hachiya Adriana, Cordeiro Gislaine Ferro, Tsuji Domingos Hiroshi, Montagnoli Arlindo Neto
Master in Bio-Engineering. Doctorate. Post Graduation in Bio-Engineering - University of São Paulo - São Carlos.
Doctor in Sciences. Post-Doctorate. Department of Otolaryngology, School of Medicine, University of São Paulo.
Int Arch Otorhinolaryngol. 2013 Jan;17(1):74-9. doi: 10.7162/S1809-97772013000100013.
The effects of voiced vibration technique can be assessed by laryngeal imaging. Kymographic images derived from high-speed videoendoscopy allow actual visualization of vocal folds vibration.
The aim of this study is to identify the immediate effects of the voiced vibration technique in healthy vocal folds using high-speed digital laryngeal imaging.
Samples were obtained from 15 healthy subjects with no history of voice disorders (6 men and 9 women aged 21 to 43 years). High-speed videoendoscopy recordings were performed before and after the voiced vibration technique. Kymographic images were obtained using high-speed videoendoscopy. The vocal folds were examined in their open and closed positions and the characteristics of the opening and closing phases were determined. A customize computational routine was used quantify these parameters. The closing, opening, and speed quotients were also calculated.
In this study, women displayed statistically significant differences in opened phase (P = 0.05*), closed phase (P = 0.046*), and closing phase (P = 0.026*) phase characteristics. Men displayed the highest difference rate in opening time characteristics (P = 0.06). The closing and opening quotients for the female group showed significant differences (P = 0.029* and P = 0.049*, respectively). The speed quotient exhibited statistically significant differences in the male group (P = 0.048*).
The kymographic images indicated that the immediate effect of the voiced vibration technique was smooth contact in healthy vocal fold vibration.
有声振动技术的效果可通过喉部成像进行评估。高速视频喉镜获取的记波图像能够实际观察声带振动情况。
本研究旨在利用高速数字喉部成像确定有声振动技术对健康声带的即时影响。
选取15名无嗓音疾病史的健康受试者（6名男性和9名女性，年龄21至43岁）作为样本。在有声振动技术操作前后进行高速视频喉镜记录。通过高速视频喉镜获取记波图像。检查声带在开放和闭合位置的情况，并确定开放和闭合阶段的特征。使用定制的计算程序对这些参数进行量化。还计算了闭合、开放和速度商数。
在本研究中，女性在开放阶段（P = 0.05*）、闭合阶段（P = 0.046*）和闭合相位（P = 0.026*）的相位特征上显示出统计学显著差异。男性在开放时间特征上显示出最高的差异率（P = 0.06）。女性组的闭合和开放商数显示出显著差异（分别为P = 0.029和P = 0.049）。速度商数在男性组中显示出统计学显著差异（P = 0.048*）。
记波图像表明，有声振动技术的即时效果是使健康声带振动时接触平稳。
