A modified Prony´s method for tracking and monitoring the effects of autonomic nervous system blockade on heart rate variability

Author

Brikou, A. ; Bezerianos, A. ; Alexopoulos, D. ; Polydoropoulos, P.

Author_Institution

Dept. of Med. Phys., Patras Univ., Greece

fYear

1995

fDate

10-13 Sept. 1995

Firstpage

453

Lastpage

456

Abstract

An advanced spectral analysis technique of good spectral resolution for short data records is introduced and is applied to Heart Rate Variability (HRV) signals. The method, based on an exponential model for the signal and on a new approach to the Prony´s spectral method, calculates the power spectrum on a running temporal window. Power Spectrum Density (PSD) is hence obtained in each window of analysis, giving one the capability to follow the dynamics of the spectral parameters (high and low frequency powers). This method was applied to data obtained during Autonomic Nervous System (ANS) blockade (propranolol and atropine administration). The results showed that we can track the time-varying spectral features of the signal and to monitor the influence of ANS blockade on the heart.

Keywords

electrocardiography; medical signal processing; neurophysiology; patient monitoring; spectral analysis; advanced spectral analysis technique; atropine administration; autonomic nervous system blockade effects; exponential model; heart rate variability; modified Prony´s method; power spectrum density; propranolol; running temporal window; short data records; Autonomic nervous system; Cardiology; Damping; Frequency domain analysis; Frequency estimation; Hafnium; Heart rate variability; Monitoring; Resonant frequency; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1995

Conference_Location

Vienna, Austria

Print_ISBN

0-7803-3053-6

Type

conf

DOI

10.1109/CIC.1995.482683

Filename

482683