Development of High-speed Digital Image Recording System for the Analysis of Glottal Dynamics and its Clinical Application

1.正常受试者声门动力学的高速数字图像分析一种新型的声带振动高速数字图像记录系统。该系统采用固体内窥镜、MOS型图像传感器和图像存储器。来自传感器的视频信号被数字化并存储在图像存储器中。正常受试者的声带振动模式可以以每秒2000帧的速度记录下来。跑步演讲中声带振动数字图像的光纤记录使用纤维内窥镜开发了类似的数字成像系统，并评估了清音辅音内爆和释放附近的声带振动的瞬时模式。实验结果表明，即使在分离颧骨后，声门在内爆时也表现出周期性的狭窄，而声带折叠在松开时很快就能获得声门完全关闭的振动。用图像数据同时记录声学和胃电信号对模拟信号和图像数据的同时记录进行评估，并对其临床应用进行测试。病理性声带振动的高速数字图像分析数字图像分析的临床应用。该系统已被证明对病理病例中的异常声带振动进行详细分析是有用的。

1. High-speed digital image analysis of glottal dynamics in normal subjectsA new system for the high-speed digital image recording of vocal fold vibration was developed. The system employs a solid endoscope, a MOS-type image sensor and image memory. Video signals from the sensor is digitized and stored in an image memory. The pattern' of vocal fold vibration in normal subjects can be recorded at the rate of 2000 frames per second.2. Fiberoptic recordings of digital image of vocal fold vibration during running speechA similar system of digital imaging using a fiberscope was developed and transient patterns of vocal fold vibration near the implosion and release of voiceless consonants were assessed. It was revealed that the glottis showed periodic narrowing at the implosion even after the separtion of the arytenoid, while vocal fold.vibration with complete glottal closure was quickly obtained at the release.3. Simultaneous recording of acoustic and EGG signals with image dataSimultaneows recordings of analog signals together with image data was assessed and its clinical application was tested.4. High-speed digital image analysis of pathological vocal fold vibrationA clinical application of digital image analysis was made. The system has proven useful for detailed analysis of abnormal vocal fold vibration in pathological cases.