房颤心电信号的分形维分析  

Fractal Dimension Analysis on the AF's Electronic Signals

作　　者：涂承媛[1] 曾衍钧[1] 李树信[2] 

机构地区：[1]北京工业大学生物医学工程中心,北京100022 [2]北京工业大学校医院,北京100022

出　　处：《中国生物医学工程学报》2005年第2期163-166,共4页Chinese Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目 (10 0 72 0 0 6)。

摘　　要：本研究提出了一种简便有效的、基于频数直方图的由心电图 (ECG)检测QRS T波的新方法 ,从而获得未房颤时的P波、房颤时的f波 ;文中利用分形维分析法对P波、f波信号进行了处理和分析 ,计算了P波和f波的盒维数 ,特别是 ,比较了未房颤时和发生房颤时的相关信息的显著差别。A simple and effective approach to detect QRS-T complexes from ECG (electrocardiogram) basd on histogram was developed so as to gain the P wave of a person when one is in sinus arrhythmia or to gain the f wave whenever the AF (atrial fibrillation) occurred. The signal processing and analysis on the P wave and the f wave were carried out by means of the fractal dimension method. The box dimension of the P wave and the f wave were calculated, and the evident differences between the related information (when AF appeared or did not appear) were compared.

关 键 词：心电图(ECG) QRS-T波 P波 房颤波(f波) 分形维 盒维 

分 类 号：R318.19[医药卫生—生物医学工程]