心电散点图在窦性心律失常诊断与鉴别诊断中的应用

为了探讨窦性心律失常的心电图表现与 Lorenz-RR 散点图、t-RR 散点图图形的对应关系，辅助鉴别心电图中不典型或易混淆的图形，应用动态心电图逆向分析功能，对比分析窦性心动过速、窦性心动过缓、窦性心律不齐、窦性早搏这4种窦性心律失常动态心电图的不同特征。通过 Lorenz-RR 散点图吸引子及 t-RR 散点图图形分布的特征性表现来区分非同源心律。不同窦性心律失常的心电散点图各具特点，与心电图结合，有助于临床正确分析判断。

Application of ECG scatterplot in diagnosis and differential diagnosis of sinus arrhythmia

To discuss the correspondence between ECG manifestation of sinus arrhythmia and fig-ures of Lorenz-RR scatterplot and t-RR scatterplot,and to make secondary differential diagnosis on atypical or easily confused ECG figures,we comparatively analyzed different characteristics of ambu-latory electrocardiography(AECG)of 4 kinds of sinus arrhythmias,including nodal tachycardia,si-nus bradycardia,sinus irregularity and sinus premature beats,with reverse analysis function of AECG.Non-homologous rhythm can be distinguished out by attractor of Lorenz-RR scatterplot and featured manifestations of graphic distribution of t-RR scatterplot.Every kind of sinus arrhythmia has its characteristic ECG scatterplot which helps in making correct analysis and judgment clinically if combined with ECG.