基于多尺度时间不可逆的窦性和房性心律失常分析

Detection of Sinus Arrhythmias and Atrial Arrhythmias Based on Multiscale Time Irreversibilty

时间不可逆性是非平衡系统的一个基本性质,量度心电(ECG)信号在不同心脏生理病理状态下的时间不可逆指数的变化趋势具有重要的意义。本文利用多尺度时间不可逆方法,对MIT-BIH标准数据库中的正常窦性心律、房性期前收缩(也称为房性早搏)和窦性心动过缓的心率变异(HRV)信号进行了分析和检测。研究表明,正常窦性心律、房性早搏和窦性心动过缓的不可逆指数呈现下降趋势,该结果对辅助临床诊断具有提示作用。

Time irreversibility is a fundamental property of nonequilibrium systems.It is significant to measure the trend of change of time irreversible index under different physiological and pathological state of electrocardiosignal.We analyzed and tested the heart rate variability（HRV） signals of the normal sinus rhythm,atrial contraction,sinus bradycardia in the MIT-BIH standard database using the multiscale time irreversiblity method.It was shown that the time irreversiblity index of the normal heart rhythm,atrial premature beats and bradycardia were in the decreasing trend.The results would be helpful to clinical diagnosis as a secondary means.