Title :
Signal processing of systolic arterial blood pressure and heart rate variability in conscious rats
Author :
Tang, X. ; Reisman, S. ; Guo, W. ; Soldan, S.A.
Author_Institution :
Dept. of Veterans Affairs, New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
A signal processing algorithm to derive spectra of systolic blood pressure (SBP) and heart rate variability (HRV) in conscious rats is reported. In this algorithm, the carotid arterial blood pressure is acquired and the rhythmic fluctuations in SBP and HRV are analyzed with a spectral technique based on the fast Fourier transform. Three major components were examined in the spectra of both SBP and HRV, a high frequency component (HF) synchronized by respiration, a low-frequency component (LF) at a frequency of ~0.5 Hz and a very low-frequency component (VLF) at frequencies below 0.5 Hz
Keywords :
biological techniques; biology computing; cardiology; electrocardiography; fast Fourier transforms; haemodynamics; medical signal processing; pneumodynamics; spectral analysis; 0.5 Hz; carotid arterial blood pressure; conscious rats; fast Fourier transform; heart rate variability; high frequency component; low-frequency component; respiration; rhythmic fluctuations; signal processing algorithm; spectral technique; systolic arterial blood pressure; very low-frequency component; Algorithm design and analysis; Arterial blood pressure; Blood pressure; Fluctuations; Frequency; Heart rate variability; Rats; Signal processing; Signal processing algorithms; Spectral analysis;
Conference_Titel :
Bioengineering Conference, 1997., Proceedings of the IEEE 1997 23rd Northeast
Conference_Location :
Durham, NH
Print_ISBN :
0-7803-3848-0
DOI :
10.1109/NEBC.1997.594943
