A Novel and Fast P Wave Detection Algorithm in ECG Signals
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摘要: 该文提出了一种新的、简单、实时性好的多导联ECG P波检测算法。该方法先检测QRS-T波群的范围，然后消除ECG中QRS-T波群，最后在TQ段利用低通差分法（LPD）和切线法检测P波起点和终点，并取两种方法的平均作为最终结果。切线法是临床医生T波终点定位所使用的方法，该文首次将其应用到P波起点和终点定位。利用CSE数据库对算法进行测试，一致性分析发现本算法检测结果和CSE数据库注解具有较好的一致性，算法检测到的P波起点、终点相对于CSE程序注解的总体平均偏差分别为-2.01 ms、3.94 ms，偏差的标准差分别是4.96 ms、5.86 ms。Abstract: This paper presents a new, simple and fast algorithm of automated P wave detection in multi-lead ECG Signals. Range of QRS-T complex is detected firstly. Then QRS-T complex is eliminated. Finally, P wave's onset and offset are detected by using the average of low-pass difference method and tangent method. Tangent method is always used to locate the offset of T Wave but it will firstly be used to locate the P wave onset and offset in this paper. The proposed algorithm is tested by the annotated CSE database. Result shows that algorithm test result has a good consistency with BIS CSE annotation. Compared with the mean and standard deviation of P wave onset and offset, our algorithm and CSE annotation is -2.01 ms, 3.94 ms and 4.96 ms, 5.86 ms.
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Keywords:
- ECG /
- P wave /
- lead /
- low-pass difference (LPD) /
- tangent method
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