基于双侧累计面积的心电信号P波检测

P-wave Detection in Electrocardiograms Based on Bilateral Accumulative Area

在体表心电图中P波时限是判断心房传导情况的重要参考依据,P波的准确检测是非常关键的。本文提出了一种基于双侧累计面积的P波检测算法,并结合12导联同步的多窗口检测。该算法根据在不同窗口长度检测的极值点进行多尺度筛选获取最优极值点,然后通过12导联同步检测进行P波位置匹配,计算出P波的起点和终点。采用CSE标准数据库的第三个数据库进行验证,本算法可以胜任于不同波形下P波的检测,检测正确率高于99%。

P-wave duration in electrocardiogram is important evidence of atrial disease analysis in clinic diagnosis.It is critical for accurate delineation of P wave.This study presented an efficient and robust detection method for P-wave boundary points on the basis of bilateral accumulative area with combination of the multiwindow and 12-lead synchronous detection.First of all,through multi-scale screening,the optimal extreme points are picked out from all extreme points of different window lengths.And the 12-lead synchronous detection is used for P-wave location matching.The results of the proposed method were evaluated on the dataset-3 of the standard CSE database.As a result,the value of sensitivity Se = 99%was obtained for the detection of P-wave.