Extraction and Quantification Clusters of Three- Dimensional Lorenz Plots

摘要：

　　Lorenz plot (LP) method gives a global view of long-time electrocardiogram signals, is an efficient simple visualization tool to analyze heart rate variability and cardiac arrhythmias. 50 records of RR-interval time series with frequent premature complexes exported from 24-hour Holter. Constructed three-dimensional LP (3DLP) with three successive RR intervals as X, Y and Z axis in Cartesian coordinate system for each record, then stereographic projection it along the space diagonal. The radii of dots distinguished eccentric clusters (ECs) points from centric clusters with the accuracy of 94±6.0%. The eccentric scatter-dots were separated and identified by the frequency distribution characteristic on azimuth, with the accuracy of 93±13.3% ECs. The APF < -2.8° of CPN EC supported the ventricular extrasystoles diagnosis, with excellent sensitivity (1.0) and specificity (0.92). The transformed coordinates (polar radius and angle) of 3DLP could extract and quantify clusters to diagnose arrhythmia, and might provide additional prognosis information.

关键词： Arrhythmia Electrocardiography Prognosis

作者: Min Hu Weixing Han Jun Liu Chengfan Jang Suxia Wang

作者单位: Department of Electrocardiogram,the Peoples Hospital of Huangshan,Huangshan,Anhui,Peoples Republic Department of Electrocardiogram and Cardiac-function,the First Affiliated Hospital of Anhui Medical School of General Education,Anhui Medical University,Hefei,Anhui,Peoples Republic of China

会议类型: 国际会议

会议名称: 第十六届世界医药健康信息学大会((MEDINFO2017)、第二届世界医药健康信息学华语论坛(WCHIS 2017)、第15届全国医药信息学大会(CMIA 2017)

会议地点: 苏州

会议语种:英文

页码: 118-121

在线出版日期: 2017-08-21（万方平台首次上网日期，不代表论文的发表时间）