基于主导频峰方法的心外膜标测信号节律分析  

Analysis of the Rhythm of Atrial Epicardial Mapping Data Based on Dominant Frequency

作　　者：李文海[1] 杨翠微[1,2] 

机构地区：[1]复旦大学电子工程系,上海市200433 [2]上海市医学图像处理与计算机辅助手术重点实验室,上海市200433

出　　处：《中国医疗器械杂志》2015年第2期79-82,共4页Chinese Journal of Medical Instrumentation

基　　金：国家自然科学基金(61071004);上海市自然科学基金(15ZR1403400)

摘　　要：正常情况下心肌以一定的节律顺序激动,而房颤时这种节律性就会发生改变。该文以心外膜标测信号为基础,在与时域特征点法对比后,采用频域主导频峰的方法,分析了窦性心律和房颤情况下心房各部位激动节律情况。研究发现房颤时心房各部位的激动节律差异很大,个别部位自律性发生了明显改变。结果表明主导频峰法非常适用于房颤时心房标测信号的节律分析。另外该文还粗略探讨了该方法在寻找房颤激动源方面的作用。If heart function is normal, the atrial cel s are excited in a stable rhythm. But this would change during atrial fibril ation. In this paper, after comparing with the method of characteristic point, we use the dominant frequency method to analyze the activation pattern under sinus and atrial fibril ation rhythm in different parts of atria based on epicardial mapping system. It is found that the activation rhythm changes a lot in different parts of atria, and the automaticity of atrial cel s change obviously in somewhere. The result shows that dominant frequency method is very suitable for the analysis of atrial fibril ation signal. What＆#39;s more, we also roughly discuss the role of this method in exploring the driving sources during atrial fibril ation.

关 键 词：主导频峰 心外膜标测 房颤 节律 自律性 

分 类 号：R541.75[医药卫生—心血管疾病]