Title :
Spectral analysis of T wave alternans signal
Author :
Serinagaoglu, Y. ; Sabuncuoglu, D. ; Íder, Y.Z.
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey
fDate :
31 Oct-3 Nov 1996
Abstract :
T wave alternans signal was obtained from a patient who recently recovered from ventricular fibrillation. The power spectrum of the T wave alternans is computed using an autoregressive model based technique. The signal is found to be a sinusoid at a frequency equal to the half of the heart rate and amplitude modulated with another sinusoid at a lower frequency, Relation between the spectrums of the T wave alternance signal and the RR variation signal is also discussed
Keywords :
autoregressive processes; electrocardiography; medical signal processing; signal sampling; spectral analysis; ECG; RR variation signal; T wave alternans signal; autoregressive model based technique; beat to beat change; power spectrum; sinusoid; spectral analysis; ventricular fibrillation; Amplitude modulation; Electrocardiography; Fibrillation; Frequency; Heart rate; Mathematical model; Power engineering and energy; Power engineering computing; Signal analysis; Spectral analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.647450
