| 基于相空间重建的短时程心电信号分析 |
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| 引用本文： | 焦青,郭永新,崔栋,曹卫芳,曹济民,张正国. 基于相空间重建的短时程心电信号分析[J]. 中国医疗器械杂志, 2008, 32(4) |
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| 作者姓名： | 焦青 郭永新 崔栋 曹卫芳 曹济民 张正国 |
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| 作者单位： | 1. 山东泰山医学院放射学院,山东,泰安,271016
2. 中国医学科学院中国协和医科大学基础医学研究所,北京,100005 |
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| 基金项目： | 国家自然科学基金项目资助,项目编号30370394,30125016 |
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| 摘 要： | 研究通过重建心电信号时间序列的两维相空间,描述了吸引子几何形状的变化,提出了两个分析短时程(几秒)心电信号的新指标:矢量模指数和矢量幅角指数。这两个指标可以明显地区分窦性心律、心动过速和室颤的心电信号,并且对心电信号时间序列长度要求很低,只需数拍几秒的心电信号就可以得到稳定的结果。这两个指标适合应用到需要快速、实时显示分析结果的医疗仪器中。
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| 关 键 词： | 相空间 心电信号 短时程 |
Short Time ECG Signal Analysis Based on the Reconstruction of Phase Space |
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| JIAO Qing,GUO Yong-xin,CUI Dong,CAO Wei-fang,CAO Ji-min,ZHANG Zheng-guo College of Radiology,Taishan Medical University,Taian. Short Time ECG Signal Analysis Based on the Reconstruction of Phase Space[J]. Chinese journal of medical instrumentation, 2008, 32(4) |
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| Authors: | JIAO Qing GUO Yong-xin CUI Dong CAO Wei-fang CAO Ji-min ZHANG Zheng-guo College of Radiology Taishan Medical University Taian |
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| Affiliation: | JIAO Qing1,GUO Yong-xin1,CUI Dong1,CAO Wei-fang1,CAO Ji-min2,ZHANG Zheng-guo2 1 College of Radiology,Taishan Medical University,Taian,271016 2 Institute of Basic Medical Sciences,Chinese Academy of Medica l Sciences,School of Basic Medical Sciences,Peking Union Medical College,Beijing,100005 |
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| Abstract: | Based on the reconstruction of two-dimension phase space of time series of short ECG signals, the variation of the strange attractor geometry is described and two indices, VMI and VAI, are derived in this paper. The two indices can distinguish clearly the ECG signals of sinus rhythm, tachycardia and ventricular f ibrillation. Stable results of VMI and VAI can be obtained by analyzing ECG signals of several seconds. They are expected to be used in the development of medical instruments for a fast realtime display of analysis results. |
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| Keywords: | phase space ECG short time |
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