| 利用R-R间期辨别房颤与正常窦性心律 |
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| 引用本文： | 陆宏伟. 利用R-R间期辨别房颤与正常窦性心律[J]. 生物医学工程学杂志, 2010, 0(1) |
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| 作者姓名： | 陆宏伟 |
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| 作者单位： | 上海理工大学医疗器械与食品学院; |
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| 基金项目： | 上海市高校选拔培养优秀青年教师科研专项基金资助项目(358540) |
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| 摘 要： | 研究利用R-R间期快速精确检测房颤(atrial fibrillation,AF)的新方法。研究重构相空间中正常窦性心律(normal sinus rhythm,NSR)与AF R-R间期两点间距离的概率密度函数(probability density function,PDF),发现两者PDF分布显著不同,在此基础上定义了特征量k,并用k检测各400段AF与NSR R-R间期。证明算法响应速度快,检测精度高(平均灵敏度97.0%,平均特异性95.2%)。
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| 关 键 词： | 房颤 R-R间期 概率密度函数 相空间重构 |
Detecting Atrial Fibrillation and Normal Sinus Rhythm by R-R Intervals |
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| Lu Hongwei. Detecting Atrial Fibrillation and Normal Sinus Rhythm by R-R Intervals[J]. Journal of biomedical engineering, 2010, 0(1) |
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| Authors: | Lu Hongwei |
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| Affiliation: | Lu Hongwei (College of Medical Instrument , Food,University of Shanghai for Science , Technology,Shanghai 200093,China) |
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| Abstract: | This paper aims to find a new method of detecting atrial fibrillation(AF) with fast responding speed and high detecting precision by R-R intervals.Probability density function(PDF) of distance between two points in the reconstructed phase space of R-R intervals of normal sinus rhythm(NSR) and AF is studied.It is found that the distribution of PDF between NSR and AF R-R intervals is significantly different;and based on this finding,a characteristic parameter k is defined.k is used for defection among 400 NSR... |
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| Keywords: | Atrial fibrillation(AF) R-R intervals Probability density function(PDF) Phase space reconstruction |
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