去除移动心电检测中运动干扰的多通道电极皮肤接触阻抗研究  

Multi-Channel Electrode Tissue Impedance to Suppress Motion Artifact in Ambulatory Electrocardiogram

作　　者：张洹千[1,2] 张树林 杜晓薇[1,2] 金庆辉[1] 刘学华 李擎[3] 杨坚 赵建龙 ZHANG Huan-qian;ZHANG Shu-lin;DU Xiao-wei;JIN Qing-hui;LIU Xue-hua;LI Qing;YANG Jian;ZHAO Jian-long(State Key Laboratory of Transducer Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China;Xuhui District Central Hospital,Shanghai 200031,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海微系统与信息技术研究所传感技术国家联合重点实验室,上海200050 [2]中国科学院大学,北京100049 [3]徐汇区中心医院,上海200031

出　　处：《北京理工大学学报》2018年第8期868-873,共6页Transactions of Beijing Institute of Technology

基　　金：上海市科委基金资助项目(14521106200)

摘　　要：研究一种多通道电极皮肤接触阻抗检测方法,能够同步检测移动心电信号和电极皮肤接触阻抗信号.该方法不需要改变移动心电检测的输入级,能够通过结构简单的电路来保证移动心电信号放大器的输入阻抗达到足够高.为了评估该方法的性能,10位健康志愿者进行了20组实验,结果显示由多通道电极皮肤接触阻抗信号与移动心电信号中的运动干扰相关性更强(中位数=0.599).相比现有的单通道电极皮肤接触阻抗检测方法,多通道电极皮肤接触阻抗能够以更简单的电路结构实现更优的性能.A novel multi-channel electrode tissue impedance（MC-ETI）detection method was proposed to monitor the ambulatory electrocardiogram（AECG）and ETI signals.Without changing its input stage,this method can make the amplifier＇s input impedance remain enough high level by a low cost discrete circuit.To assess the performance of this method,twenty experiments in ten healthy volunteers were carried out.Simulation results show that the reference signal generated by MC-ETI has the strong correlation with MA in AECG（median=0.599）.Comparing with single-channel electrode tissue impedance（SC-ETI）method,MC-ETI can achieve the same performance with a simple system.

关 键 词：移动心电检测 电极皮肤接触阻抗 运动干扰 相关性 

分 类 号：TH772[机械工程—仪器科学与技术]