Title :
Dynamic non-deterministic characterization of HRV through multiresolution wavelet decomposition
Author :
Bakardjian, Hovagim ; Yamamoto, Katsuyuki
Author_Institution :
Fac. of Eng., Hokkaido Univ., Sapporo, Japan
Abstract :
The present study investigates the multiresolution wavelet decomposition approach to the analysis of the heart rate variability (HRV) and the autonomic function. Autocorrelation analysis of the informative low- to high-frequency LF/HF ratio in time indicates that study of this parameter´s long-term dependencies may prove diagnostically important. Return maps of the LF and HF octave bands of the multiresolution wavelet transform exhibited chaotic control behavior in the LF energy and repetitive patterns in the HF region of the HRV
Keywords :
chaos; electrocardiography; medical signal processing; wavelet transforms; autocorrelation analysis; chaotic control behavior; dynamic nondeterministic characterization; electrodiagnostics; heart rate variability analysis; low-/high-frequency ratio; multiresolution wavelet transform; octave bands; repetitive patterns; return maps; Autocorrelation; Biomedical engineering; Continuous wavelet transforms; Discrete wavelet transforms; Energy resolution; Frequency; Hafnium; Heart rate variability; Signal resolution; Wavelet analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579484
