Title :
Spectral analysis and time-dependent properties of atrial fibrillation in the surface ECG
Author :
Stridh, Martin ; Sörnmo, Leif ; Holm, Magnus ; Olsson, B. ; Sattar, Farook
Author_Institution :
Dept. of Appl. Electron., Lund Univ., Sweden
fDate :
29 Oct-1 Nov 1998
Abstract :
A new non-invasive technique is presented for the characterization of time-dependent spectral properties of atrial fibrillation in the surface ECG. The method uses the Wigner-Ville distribution for time-frequency analysis and the cross Wigner-Ville is used to compute trends which describe the instantaneous frequency of the atrial activity. Preliminary results indicate that short-term variations exist in the fibrillation cycle lengths and that the variations can exhibit similar behavior in the leads V1-V3
Keywords :
Wigner distribution; electrocardiography; medical signal processing; spectral analysis; time-frequency analysis; Wigner-Ville distribution; atrial activity; atrial fibrillation; fibrillation cycle lengths; instantaneous frequency; noninvasive technique; short-term variations exist; spectral analysis; surface ECG; time-dependent properties; time-frequency analysis; Atrial fibrillation; Band pass filters; Cardiology; Distributed computing; Electrocardiography; Filtering; Frequency estimation; Shape; Spectral analysis; Time frequency analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745842
