Title :
A novel heart rate variability index for evaluation of left ventricular function using five-minute electrocardiogram
Author :
Babaeizadeh, S. ; Zhou, Sh ; Liu, X. ; Hu, WY ; Feild, DQ ; Helfenbein, Ed ; Gregg, Re ; Lindauer, Jm
Author_Institution :
Adv. Algorithm Res. Center, Thousand Oaks, CA
fDate :
Sept. 30 2007-Oct. 3 2007
Abstract :
In this paper, we introduce a new index based on the frequency-domain analysis of heart rate variability, or more precisely, the power spectrum of the instant heart rate signal. This index, called VHFI, is defined as the very high frequency component of the power spectrum normalized to represent its relative value in proportion to the total power minus the very low frequency component. We tested VHFI on patients with known reduced left ventricular function and found that this index has the potential to be a useful tool for quick evaluation of left ventricular function.
Keywords :
bioelectric phenomena; electrocardiography; frequency-domain analysis; medical signal processing; spectral analysis; HRV frequency-domain analysis; VHFI; electrocardiogram; heart rate variability index; instant heart rate signal power spectrum; left ventricular function evaluation; normalized power spectrum VHF component; time 5 min; Algorithm design and analysis; Cardiology; Electrocardiography; Frequency domain analysis; Hafnium; Heart rate; Heart rate variability; Hospitals; Testing; Time domain analysis;
Conference_Titel :
Computers in Cardiology, 2007
Conference_Location :
Durham, NC
Print_ISBN :
978-1-4244-2533-4
Electronic_ISBN :
0276-6547
DOI :
10.1109/CIC.2007.4745525
