[T波交替的庞加莱散点图定量检测]

[A quantitative detection of Poincare scatter for T-wave alternans].

作者信息

Chen Tiantian, Zhao Jie, Yin Wenfeng, Zhang Chunyou, Li Dapeng, An Baijing, Zhang Junjian

出版信息

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2014 Jun;31(3):538-42.

PMID:25219230

Abstract

To study the quantitative detection method of T-wave alternans (TWA), we analyzed the relationship between the graphic mode of Poincare scatter and TWA, and proposed 'horizontal search algorithm' to complete graphic processing. Then, based on the shape of Poincare scatter, we took Axial_ratio as the final index. Through Matlab simulation, Axial_ratio was compared with the results of spectral method (SM) and appropriate threshold value was selected to recognize the TWA. The results showed that Axial_ratio could accurately detect the TWA.

摘要

为研究T波交替（TWA）的定量检测方法，我们分析了庞加莱散点图模式与TWA之间的关系，并提出“水平搜索算法”来完成图形处理。然后，基于庞加莱散点图的形状，我们将轴比作为最终指标。通过Matlab仿真，将轴比与频谱法（SM）的结果进行比较，并选择合适的阈值来识别TWA。结果表明，轴比能够准确检测TWA。