High-speed digital imaging laryngoscopy of the neoglottis following supracricoid laryngectomy with cricohyoidoepiglottopexy

本研究旨在利用高速数字成像系统分析接受环舌舌骨上喉切除术合并会厌瓣闭合术患者的发声表现，并探讨新舌声源的性质。通过反滤波分析得到的新舌口估计体积流量的波形与多线心电图得到的新舌口振动模式吻合较好。这些发现表明，通过本方法确定的新咽的特定部位可能是每个患者的声源。高速数字成像分析是有效的定位部位负责声音产生的患者谁接受了环舌舌骨上喉切除术会厌粘连。这是首次使用高速数字成像系统清晰识别此类患者新生儿声源的研究。

This study aimed to analyse vocal performance and to investigate the nature of the neoglottal sound source in patients who had undergone supracricoid laryngectomy with cricohyoidoepiglottopexy, using a highspeed digital imaging system.The waveform of the estimated volume flow at the neoglottis, obtained by inverse filtering analysis, corresponded well to the neoglottal vibration patterns derived by multiline kymography. These findings indicated that the specific sites identified at the neoglottis by the present method were likely to be the sound source in each patient. High-speed digital imaging analysis is effective in locating the sites responsible for voice production in patients who have undergone supracricoid laryngectomy with cricohyoidoepiglottopexy. This is the first study to clearly identify the neoglottal sound source in such patients, using a high-speed digital imaging system.