同步12导联ECG的多重分形分布

Multifractal Distribution of Synchronous 12 lead ECG Signals

同步12导联ECG各个导联之间存在着多重分形奇异谱分布.人的ECG多重分形奇异谱面积12导均值由人体神经自律控制,反映的是人体的神经控制强弱,而不是心脏本身的病变程度;心脏本身的生理病理活动对ECG多重分形奇异谱面积12导均值起着一种调制作用.导联的多重分形奇异谱面积分布参量指标可以用来指征冠心病.

Synchronous 12 lead ECG of mankind was found of characterizing multifractality. There is a well regulated multifractal singularity spectrum distribution among different leads. Although not all the lead is sensitive, the parameter of the area of the multifractal singularity spectrum can be used to indicate coronary heart disease. Along with the decrease of the age, the sensitivity of the parameter on the area of lead's multifractal singularity spectrum is strengthening and the number of the lead effectively indicating coronary heart disease is increasing. On the contrary, the sensitivity of the parameter on the area of lead's multifractal singularity spectrum is weakening and the number of the lead effectively indicating coronary heart disease is decreasing. It discloses the distribution parameter of the area of the multifractal singularity spectrum can comparatively early indicate whether younger people suffer from coronary heart disease. We think that the 12 leads' mean value of the area of human's ECG multifractal singularity spectrum is controlled mainly by his neurosystem, which reflects the strength of body's neuroautonomic control on the heart rather than the extent of heart failure. The human heart's intrinsic physiological and pathological activities modulate the human ECG multifractal singularity spectrum distribution. After modulation, the abnormal lead multifractal singularity spectrum can denote the heart disease region.