| 基于小波变换的心音信号分析研究 |
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| 引用本文： | 刘毅,张彩明,邵庆余,朱兴雷,李桥,赵玲.基于小波变换的心音信号分析研究[J].计算机应用研究,2004,21(5):52-53,77. |
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| 作者姓名： | 刘毅 张彩明 邵庆余 朱兴雷 李桥 赵玲 |
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| 作者单位： | 1. 山东大学,计算机科学与技术学院,山东,济南,250061
2. 山东大学,医学院,山东,济南,250012 |
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| 基金项目： | 山东省科委基金(951156202) |
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| 摘 要： | 通过自行研制的硬件系统，在心前区采集心音数据，并采集一导心电信号来定位心音。用小波变换时频分析方法，对各年龄段正常人和冠心病老年人的低频心音段的第三(S3)、第四(S4)心音进行了分析研究，得出了所有正常人均有S3，S4，并且正常老年人与老年一般冠心病患者S3的频谱主峰频率存在明显差异(P=0．0164)的结论，表明S3的检测有重要的临床诊断意义。
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| 关 键 词： | 小波变换 心音 主峰频率 |
| 文章编号： | 1001-3695(2004)05-0052-02 |
Analysis of Heart Sound Based on Wavelet Transform |
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| LIU Yi,ZHANG Cai-ming,SHAO Qing-yu,ZHU Xing-lei,LI Qiao,ZHAO Ling.Analysis of Heart Sound Based on Wavelet Transform[J].Application Research of Computers,2004,21(5):52-53,77. |
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| Authors: | LIU Yi ZHANG Cai-ming SHAO Qing-yu ZHU Xing-lei LI Qiao ZHAO Ling |
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| Affiliation: | LIU Yi~1,ZHANG Cai-ming~1,SHAO Qing-yu~2,ZHU Xing-lei~2,LI Qiao~2,ZHAO Ling~2 |
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| Abstract: | The system devised by ourselves is used to detect the Heart Sound(HS) signal. The HS data was sampled at the precardium, and Lead I of the ECG was recorded simultaneously to label the heart sound. Using wavelet transform and timefrequency analysis method, the S3 and S4 of normal children, normal adults, normal elder and old subjects with Coronary Heart Diseases(CHD) were statistically analyzed. The results indicated that all normal persons has S3 and S4, and the significant difference(p=0.0164) was found in main peak frequencies of S3 between normal elder and old group with CHD. It shows that S3 is helpful in diagnosis the cardiovascular diseases. |
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| Keywords: | Wavelet Transform Heart Sound Main Peek Frequency |
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