| 基于几何算法的T波终点检测研究 |
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| 引用本文： | 王娟,黄忠朝,刘正春. 基于几何算法的T波终点检测研究[J]. 中国医学物理学杂志, 2010, 27(2): 1751-1754 |
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| 作者姓名： | 王娟 黄忠朝 刘正春 |
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| 作者单位： | 中南大学信息物理工程学院生物医学工程研究所,湖南,长沙,410083 |
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| 基金项目： | 国家自然科学基金，高校博士点新教师基金 |
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| 摘 要： | 目的:用一种精确有效的方法实现T波终点检测。方法:对心电信号进行小波变换,定位R波后,通过准确地定位T波的检测区间,避免心率和P波的影响,在确定的区间上根据模极值检测出所有T波的顶点,用一种简单实用的几何方法检测出T波的终点。将本文的算法用于QT数据库中,评价实验结果。结果:本文的算法标注能力为(-0.35225±18.5869)ms,达到甚至超过了QT数据库里专家手工标注的水平。结论:文中采用T波终点检测的方法在存在噪声和基线漂移以及T波形态多变的情况下鲁棒性都比较好,并且计算简单,易于实现。
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| 关 键 词： | T波终点 小波变换 几何方法 检测区间 |
Study of T-wave End Detection with Geometric Method |
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| WANG Juan,HUANG Zhong-chao,LIU Zheng-chun. Study of T-wave End Detection with Geometric Method[J]. Chinese Journal of Medical Physics, 2010, 27(2): 1751-1754 |
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| Authors: | WANG Juan HUANG Zhong-chao LIU Zheng-chun |
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| Affiliation: | WANG Juan,HUANG Zhong-chao,LIU Zheng-chun(Institute of Biomedical Engineering,School of Info-Physics , Geomatics Engineering,Central South University,Changsha Hunan 410083,China) |
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| Abstract: | Purpose:To realize the detection of T-wave end with an efficient and accurate method. Methods:R-wave was located using wavelet transforming,and then the T-wave detection interval was identified accurately by avoiding the influence of heart rate and P-wave. In addition,T-wave peaks were determined referring to the modulus maxima in the interval. Based on these,the T-wave end was located with a simple and practical geometrical method,which was applied for the evaluation of QT database. Results:The positioning... |
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| Keywords: | T-wave end wavelet transforming geometrical method detection interval |
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