三维Lorenz散点图精解:早搏篇

Fine analysis of three-dimensional Lorenz scatter plot: premature beats

本文精选3个典型病例,从二维时间散点图、Lorenz散点图、差值散点图入手,循序渐进地探讨三维Lorenz散点图的规律性。分析和总结房性早搏、房性早搏未下传、室性早搏、插入性室性早搏、室性反复搏动的三维Lorenz散点图特征,对比二维Lorenz散点图及差值散点图与三维Lorenz散点图的内在联系。结果表明:三维Lorenz散点图整合了二维Lorenz散点图与二维差值散点图的所有优势;新提供的zOx面表现出了对称的特征(对称于等速线),这是相隔RR间期的规律性,以最美的姿态展示了动态心电图的RR间期分类。这是所有二维心电散点图所不具备的新功能。三维Lorenz散点图的另一重要理论意义是证实了二维差值散点图的重要价值,二维差值散点图相当于三维Lorenz散点图的xyz面。

This paper selects three typical cases,starting with two-dimensional time scatter plot,Lorenz scatter plot and difference scatter plot,the regularity of three-dimensional Lorenz scatter plot was explored step by step.The three-dimensional Lorenz scatter plot characteristics of atrial premature beats,atrial premature beats not conducting down,premature ventricular contraction,interpolated premature ventricular contraction and ventricular reciprocal beats were analyzed and summarized.The internal relations between two-dimensional Lorenz scatter plot,difference scatter plot and three-dimensional Lorenz scatter plot were compared.The results show that three-dimensional Lorenz scatter plot integrates all the advantages of two-dimensional Lorenz scatter plot and two-dimensional difference scatter plot.A newly provided zOx surface exhibits symmetrical features(symmetry for constant velocity line).This reflects the regularity of separated RR intervals and the classification of RR intervals is exhibited in the most beautiful way.This is a new function that all of two-dimensional Lorenz scatter plots do not have.Another important theoretical significance of three-dimensional Lorenz scatter plot is the verification of the important values of two-dimensional difference scatter plot—the latter is equivalent of xyz surface of the former.