[12导联心电图ST段的奇异性谱分析]

[Singularity spectra analysis of the ST segments of 12-lead electrocardiogram].

作者信息

Wang Jun, Ning Xinbao, Xu Yinlin, Ma Qianli, Chen Ying, Li Dehua

机构信息

Image Processing and Image Communications Key Lab., College of Telecommunication and Information Engineering, Nanjing University of Posts & Telecomm., Nanjing 210003, China.

出版信息

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2007 Dec;24(6):1211-4.

PMID:18232462

Abstract

By analysing the f(a) singularity spectra of the ST segments of the synchronous 12-lead ECG, we have found that the singularity spectrum is close to monofractality and its area is only half the area of the synchronous 12-lead ECG f(alpha) singularity spectrum. The ST segments of the synchronous 12-lead ECG signal also has f(alpha) singularity spectra distribution and it also has a reasonable varying scope. We have also found that the lead number of the ST segment f (alpha) singularity spectra for adults having coronary heart disease overstep the reasonable scope tends to increase over that of the ECG f(alpha) singularity spectra. These findings show that using the ST segments f(alpha) singularity spectra distribution of the synchronous 12-lead ECG is more effective than using the synchronous 12-lead ECG on the clinical analysis.

摘要

通过分析同步12导联心电图ST段的f(a)奇异性谱，我们发现其奇异性谱接近单分形性，且其面积仅为同步12导联心电图f(α)奇异性谱面积的一半。同步12导联心电图信号的ST段也有f(α)奇异性谱分布，且有合理的变化范围。我们还发现，冠心病成人ST段f(α)奇异性谱超出合理范围的导联数往往比心电图f(α)奇异性谱的导联数增加。这些发现表明，在临床分析中，利用同步12导联心电图的ST段f(α)奇异性谱分布比利用同步12导联心电图更有效。