Title :
Comparison of nonlinear indices in analyses of heart rate variability
Author :
Li, Cheng ; Tang, Da-Kan ; Zheng, Da-An. ; Ding, Guang-Hong ; Poon, Chi-Sang ; Wu, Guo-Qiang
Author_Institution :
Department of Mechanics and Engineering, Science of Fudan University, Shanghai, 200032 China
Abstract :
Recent advances in study of heart rate variability (HRV) call for a paradigm shift from linear to nonlinear analysis. However, whether HRV per se is chaotic or merely random has remained an open problem. Myriad idealized measures of nonlinear dynamics or fractals which have been proposed in the literatures to characterize HRV are limited by their sensitivity to discernable noise. In this work, we compare the robustness of some nonlinear indices and evaluate their applicability to HRV analysis in the presence of noise.
Keywords :
Chaos; Fluctuations; Fractals; Frequency; Hafnium; Heart rate variability; Noise measurement; Parasympathetic nervous system; Testing; Time series analysis; Algorithms; Electrocardiography; Entropy; Fractals; Heart Rate; Humans; Models, Cardiovascular; Nonlinear Dynamics; Pattern Recognition, Automated; Signal Processing, Computer-Assisted;
Conference_Titel :
Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1814-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2008.4649618
