Title :
Comparison of individual lead and combined lead frequency parameters of signal averaged electrocardiograms
Author :
Fuller, Marc S. ; Freedman, Roger A. ; Barton, Deborah
Author_Institution :
Div. of Cardiology, Utah Univ. Med. Center, Salt Lake City, UT, USA
Abstract :
Short-time Fourier analysis was performed on signal-averaged electrocardiograms (SAEs) for subjects with and without sustained ventricular tachycardias (SVTs). The ratio of low frequency (0-25 Hz) to high frequency (25-50 Hz) was computed for a 100-ms window moved through the SAE. This was done for each of the three orthogonal leads. These ratios were tested to see if the could distinguish between subjects with and without SVT. Also, for each subject, a geometric mean of the three lead ratios was computed at each shift, to see if this parameter could distinguish the two groups
Keywords :
electrocardiography; 0 to 50 Hz; 100 ms; frequency parameters; geometric mean; orthogonal leads; short-time Fourier analysis; signal averaged electrocardiograms; sustained ventricular tachycardia; Cardiology; Cities and towns; Coronary arteriosclerosis; Frequency; Medical diagnostic imaging; Performance analysis; Signal analysis; Signal processing; Statistical analysis; Testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95554
