基于电声门图信号的可控超声喉动态成像系统  

Controllable dynamic ultrasound imaging system of vocal fold vibration based on electroglottography

作　　者：张聪[1] 唐姗姗[1] 张媛媛[1] 敬博文 吴亮[1] 万明习[1] 王素品[1] 

机构地区：[1]西安交通大学生物医学工程系,西安710049

出　　处：《中国科技论文》2015年第14期1645-1650,1681,共7页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(20120201110049)

摘　　要：提出了一种利用单片机进行控制,结合电声门图仪和全数字化超声系统,共同完成声带振动特定相位观测的动态成像系统。该系统利用外围硬件电路对电声门图信号的特征相位点进行识别,并通过单片机对图像采集时刻进行精确的计算和控制,可以完成声带振动频率的测量、声带静态相位的持续观测和声带振动过程的动态慢放。通过搭建实验系统进行系统测试,验证了系统的可靠性和有效性,并最终实现了该动态成像系统对声带振动过程的实时观测。A dynamic imaging system controlled by single chip microcomputer is presented.This system combines electroglottog-raphy and ultrasonic imaging,in order to get the special phase imaging of vocal fold vibration.The hardware circuit is applied to identify the special phase of electroglottography;and the single chip microcomputer is used to control the trigger pulse.This sys-tem could measure the frequency of vocal fold vibration,static and dynamic imaging of vocal fold vibration.Finally,comprehen-sive experiments validate the feasibility and effectiveness of the proposed method.In addition,the dynamic ultrasound imaging system can observe the vocal fold vibration clearly.

关 键 词：超声成像 声带振动 单片机控制 

分 类 号：O42[理学—声学]