Natural entropy fluctuations discriminate similar looking electric signals emitted from systems of different dynamics
Data Analysis, Statistics and Probability
2007-05-23 v1 Biological Physics
Abstract
Complexity measures are introduced, that quantify the change of the natural entropy fluctuations at different length scales in time-series emitted from systems operating far from equilibrium. They identify impending sudden cardiac death (SD) by analyzing fifteen minutes electrocardiograms, and comparing to those of truly healthy humans (H). These measures seem to be complementary to the ones suggested recently [Phys. Rev. E {\bf 70}, 011106 (2004)] and altogether enable the classification of individuals into three categories: H, heart disease patients and SD. All the SD individuals, who exhibit critical dynamics, result in a common behavior.
Keywords
Cite
@article{arxiv.physics/0501118,
title = {Natural entropy fluctuations discriminate similar looking electric signals emitted from systems of different dynamics},
author = {P. A. Varotsos and N. V. Sarlis and E. S. Skordas and M. S. Lazaridou},
journal= {arXiv preprint arXiv:physics/0501118},
year = {2007}
}
Comments
Published in Physical Review E