基于心冲击信号的心率检测

张先文, 张丽岩, 丁力超, 魏荣荣, 王婕, 唐劲天

清华大学学报(自然科学版) ›› 2017, Vol. 57 ›› Issue (7) : 763-767.

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清华大学学报(自然科学版) ›› 2017, Vol. 57 ›› Issue (7) : 763-767. DOI: 10.16511/j.cnki.qhdxxb.2017.25.034
物理与工程物理

基于心冲击信号的心率检测

  • 张先文1, 张丽岩1, 丁力超2, 魏荣荣2, 王婕1, 唐劲天1
作者信息 +

Heartbeat detection based on ballistocardiograms

  • ZHANG Xianwen1, ZHANG Liyan1, DING Lichao2, WEI Rongrong2, WANG Jie1, TANG Jintian1
Author information +
文章历史 +

摘要

心冲击信号(ballistocardiogram,BCG)是由心脏搏动和大动脉血液循环引起的人体对外压力的变化,可用于无接触心脏活动检测。该文使用PVDF(polyvinylidene fluoride)压电薄膜,研制心冲击信号-心电信号(electrocardiogram,ECG)联合采集设备,并提出自适应模板匹配算法,基于心冲击信号计算心动周期,实现心率实时检测。采集24名健康成年人信号,对比ECG与BCG在心率检测方面的差异,同时评价算法的有效性。结果表明:BCG和ECG在计算心率方面无显著差异,自适应模板匹配算法查准率达到99.77%,查全率达到99.56%,准确性符合要求。

Abstract

A ballistocardiogram (BCG) unobtrusively records the weight variation caused by the reaction force of blood ejection and blood flow in the aorta. A BCG system was developed to record BCG signals and detect the heart beats in the BCG signal. Data from 24 healthy subjects was collected to investigate the system with simultaneous electrocardiograms (ECG) as a reference. The results show no significant difference between the heartbeats detected by the ECG and BCG system (p=0.95) with the BCG system having a sensitivity of 99.56% and an accuracy of 99.77%.

关键词

心冲击信号(BCG) / 心率检测 / 模板匹配

Key words

ballistocardiogram (BCG) / heartbeat detection / templating method

引用本文

导出引用
张先文, 张丽岩, 丁力超, 魏荣荣, 王婕, 唐劲天. 基于心冲击信号的心率检测[J]. 清华大学学报(自然科学版). 2017, 57(7): 763-767 https://doi.org/10.16511/j.cnki.qhdxxb.2017.25.034
ZHANG Xianwen, ZHANG Liyan, DING Lichao, WEI Rongrong, WANG Jie, TANG Jintian. Heartbeat detection based on ballistocardiograms[J]. Journal of Tsinghua University(Science and Technology). 2017, 57(7): 763-767 https://doi.org/10.16511/j.cnki.qhdxxb.2017.25.034
中图分类号: R331   

参考文献

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