一种从母体腹部电极心电信号中检测胎心R波的算法

发布时间：2018-01-13 18:00

本文关键词：一种从母体腹部电极心电信号中检测胎心R波的算法　出处：《厦门大学学报(自然科学版)》2017年01期 　论文类型：期刊论文

【摘要】：母体腹部电极心电法通过放置在孕妇腹部的电极片无创检测胎儿心电信号.但腹部无创检测采集的是包含胎儿心电、母体心电及噪声的混合信号,且母体心电信号的幅值远大于胎心信号.基于此问题,提出从母体腹部心电信号中检测胎儿R波的高效算法.该算法避免对腹部信号建立复杂的模型,通过最小化误差函数,自适应地滤除母亲心电信号的波形,以获得较清晰的胎儿心电波形.再经过基于聚类的胎儿R波尖峰检测以及精筛选的步骤,获得正确的胎儿R波尖峰.该算法使用PhysioNet Challenge 2013的腹部心电数据集Set-a进行测试.测试结果中,胎儿R波尖峰提取的平均灵敏度为88%,平均阳性检测率为88%.由于不涉及复杂的计算,该算法运行时间短,效率高,处理持续时长为60s的腹部信号平均用时2.64s,很适合用于可穿戴设备中心电信号的实时检测.
[Abstract]:Maternal abdominal electrode method by placing electrodes in the abdomen of pregnant women for noninvasive detection of fetal ECG. But abdominal noninvasive detection of fetal ECG acquisition is included, mixed signal and noise of the maternal ECG, and the amplitude of ECG signal is much larger than the maternal fetal heart signal. Based on this problem, an efficient algorithm is proposed to detect fetal R waves from the maternal abdominal ECG signal. This algorithm avoids a complex model of the abdominal signal by minimizing the error function, adaptive filtering mother ECG waveform, to obtain fetal ECG waveform clearly. After screening the fetal clustering R spike detection and precision based on the steps of fetal R wave peak right the abdominal ECG data. The algorithm uses PhysioNet Challenge 2013 sets of Set-a were tested. The test results, the average sensitivity of fetal R wave peak extraction was 88%, Ping Junyang The detection rate is 88%.. Because it doesn't involve complex computation, the algorithm runs with a short time and is efficient. The abdominal signal with a duration of 60s is 2.64s. It is very suitable for real-time detection of electrical signals in wearable devices.

【作者单位】：中国科学院合肥智能机械研究所;中国科学技术大学信息科学技术学院;厦门大学航空航天学院;厦门大学附属第一医院;
【分类号】：R714.5
【正文快照】： 2017,56(1):111-116.Citation:XIE X L,WANG Z Y,CHEN G,et al.An efficient algorithm for detecting fetal QRS complexes from non-invasive ab-dominal ECG signal[J].J Xiamen Univ Nat Sci,2017,56(1):111-116.(in Chinese)胎儿心电[1]在早期胎儿疾病诊断中扮演重要的角

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