Subband modeling of the human cardiovascular system: new insights into cardiovascular regulation.
We present a new approach to cardiovascular analysis based on a well-known signal processing technique, namely, the frequency subband decomposition. The subbands are chosen in accordance with physiological standards: (1) 0-0.04 Hz, (2) 0.04-0.15 Hz, (3) 0.15-0.4 Hz. It is shown that such a pre-processing drastically improves the accuracy of the analysis and introduces a new direction in the understanding of the relationships between cardiovascular signals.
Vetter
R
R
Department of Electrical Engineering, Swiss Federal Institute of Technology, Lausanne.
Celka
P
P
Vesin
J M
JM
Thonet
G
G
Pruvot
E
E
Fromer
M
M
Scherrer
U
U
Bernardi
L
L
D000328:Adult; D000368:Aged; D001341:Autonomic Nervous System / Q000502:physiology; D001698:Biomedical Engineering; D001794:Blood Pressure / Q000502:physiology; D002320:Cardiovascular Physiological Phenomena; D016022:Case-Control Studies; D006339:Heart Rate / Q000502:physiology; D016027:Heart Transplantation / Q000502:physiology; D006801:Humans; D016014:Linear Models; D008176:Lung Volume Measurements; D008875:Middle Aged; D008955:Models, Cardiovascular; D017711:Nonlinear Dynamics; D012815:Signal Processing, Computer-Assisted