Measuring body layer vibration of vocal folds by high-frame-rate ultrasound synchronized with a modified electroglottograph.
Measuring body layer vibration of vocal folds by high-frame-rate ultrasound synchronized with a modified electroglottograph.
复制标题
DOI：
10.1121/1.4807652
复制
发表时间：
2013-07
期刊：
影响因子：
--
通讯作者：
Shanshan Tang;Yuanyuan Zhang;X. Qin;Supin Wang;M. Wan
中科院分区：
文献类型：
--
作者：
Shanshan Tang;Yuanyuan Zhang;X. Qin;Supin Wang;M. Wan
体-盖概念认为体层振动是声带振动不可缺少的组成部分。为了量化这种振动，本文采用由高帧率超声和改进的电声门图（EGG）组成的同步系统，同时成像的体层振动和记录声带振动相位信息在自然发声。数据采集后，从超声射频数据中测量出在体层振动的位移，并采用时域重建方法提高测量精度。结果表明，改进后的胃电图波形和特征点与常规胃电图一致，解决了超声换能器与胃电电极位置冲突的问题。位移估计图像中的振动体层的位置和范围比超声B型图像中的振动体层的位置和范围更清晰和可辨别。对体层振动特征的定量分析表明，正常胸音发声时，体层作为一个整体沿上下方向运动。
The body-cover concept suggests that the vibration of body layer is an indispensable component of vocal fold vibration. To quantify this vibration, a synchronized system composed of a high-frame-rate ultrasound and a modified electroglottograph (EGG) was employed in this paper to simultaneously image the body layer vibration and record the vocal fold vibration phase information during natural phonations. After data acquisition, the displacements of in vivo body layer vibrations were measured from the ultrasonic radio frequency data, and the temporal reconstruction method was used to enhance the measurement accuracy. Results showed that the modified EGG, the waveform and characteristic points of which were identical to the conventional EGG, resolved the position conflict between the ultrasound transducer and EGG electrodes. The location and range of the vibrating body layer in the estimated displacement image were more clear and discernible than in the ultrasonic B-mode image. Quantitative analysis for vibration features of the body layer demonstrated that the body layer moved as a unit in the superior-inferior direction during the phonation of normal chest registers.