胃动力信息检测系统的设计与实现  

Development on Gastric Motility Information Extracting System

作　　者：李章勇[1] 王伟[1] 魏进民[1] 贺中华[1] 杨及[1] 王美霞[1] 

机构地区：[1]重庆邮电大学,生物医学信息工程研究所,重庆400065

出　　处：《生物医学工程研究》2006年第3期170-172,共3页Journal Of Biomedical Engineering Research

基　　金：国家自然科学基金资助项目(60471041);重庆邮电大学科学基金资助项目(A2004-61);重庆邮电大学青年科学基金资助项目(A2006-47)

摘　　要：将胃电与胃机械活动相关的胃阻抗信息作为诊断依据,建立新的、更准确的胃动力评价方法。基于阻抗法设计了获取胃动力信息的系统,通过小波变换技术分离与胃电同步的胃蠕动信息。结果表明系统通过了调试,实现设计功能,采集到了阻抗和同步胃电信号。小波变换提取的信号排除了干扰,获得了胃蠕动信息。基于阻抗技术的方法可检测胃蠕动状态,联合同步胃电分析技术为临床检测提供了新方法。EGG and synchronized gastric impedance can be used to evaluate gastric motility.A new system was developed that based on synchronize to extract information form EGG and gastric impedance which is separated out from bio-impedance using wavelet transform.Result showed that the system was realized and could collect gastric impedance and synchronized EGG.The wavelet transform could eliminate interfere signal,so that the wriggles could be acquired.We can extract the characteristic and change information that corresponds with the gastric motility with the method.The technique can be applied in clinic.

关 键 词：胃动力 生物阻抗 胃电 小波变换 信号处理 

分 类 号：TN99[电子电信—信号与信息处理] R318[电子电信—信息与通信工程]