| 心电微伏T波交替检测的一种方法 |
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| 引用本文： | 沈永林,蔡志鸿,孙小苍.心电微伏T波交替检测的一种方法[J].清华大学学报(自然科学版),2004,44(4):462-465. |
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| 作者姓名： | 沈永林 蔡志鸿 孙小苍 |
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| 作者单位： | 1. 清华大学电机工程与应用电子技术系,北京,100084
2. 清华大学校医院,北京,100084 |
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| 摘 要： | 为心电微伏T波交替的临床研究寻找一种合适的检测方案,文章对T波交替检测的影响因素——运动方案、信号预处理、QRS复波位置、T波选取及心电信号的相关问题进行了分析,对T波交替检测的算法进行了仿真研究。在此基础上,确定了一种T波交替检测的方案,采用活动平板试验,按照新设计的运动方案,采集运动心电信号,通过功率谱分析,检测其运动过程中T波交替出现的频度和幅度。给出了采用该方案对受试者进行T波交替检测的实例。分析研究及实测结果表明该方案可用于检测微伏T波交替。
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| 关 键 词： | 心电图 微伏T波交替 运动平板 功率谱分析 |
| 文章编号： | 1000-0054(2004)04-0462-04 |
| 修稿时间： | 2003年4月6日 |
Microvolt T-wave alternans detection during a treadmill stress test |
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| SHEN Yonglin,CAI Zhihong,SUN Xiaocang.Microvolt T-wave alternans detection during a treadmill stress test[J].Journal of Tsinghua University(Science and Technology),2004,44(4):462-465. |
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| Authors: | SHEN Yonglin CAI Zhihong SUN Xiaocang |
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| Institution: | SHEN Yonglin~1,CAI Zhihong~1,SUN Xiaocang~2 |
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| Abstract: | A model was developed to emulate microvolt T-wave alternans (TWA), which occur during ECG tests, as a function of the exercise scheme, signal preprocessing, QRS wave locations, T-wave selection method and others factors associated with the ECG signal. A detection method was developed and clinically tested using a treadmill stress test. The ECG data was analyzed to detect the times of TWA occuring and their amplitudes using a power spectrum analysis. The clinical tests showed that the method is effective for microvolt T-wave alternans detection. |
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| Keywords: | cardiogram microvolt T-wave alternans treadmill power spectrum analysis |
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