CAJ | 학술논문

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。
정상정황하심기이일정적절률순서격동，이방전시저충절률성취회발생개변。해문이심외막표측신호위기출，재여시역특정점법대비후，채용빈역주도빈봉적방법，분석료두성심률화방전정황하심방각부위격동절률정황。연구발현방전시심방각부위적격동절률차이흔대，개별부위자률성발생료명현개변。결과표명주도빈봉법비상괄용우방전시심방표측신호적절률분석。령외해문환조략탐토료해방법재심조방전격동원방면적작용。
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's more, we also roughly discuss the role of this method in exploring the driving sources during atrial fibril ation.