TY - GEN
T1 - Predicting spontaneous termination of atrial fibrillation with time-frequency information
AU - Sandberg, Frida
AU - Stridh, Martin
AU - Bollmann, Andreas
AU - Sörnmo, Leif
PY - 2004
Y1 - 2004
N2 - Our approach to predicting spontaneous termination of atrial fibrillation (AF) is based on parameters derived from the time-frequency distribution of the residual ECG signal, resulting from spatiotemporal cancellation of QRST complexes. Each consecutive, logarithmically scaled spectrum of the time-frequency distribution of the residual ECG is modeled as a frequency shifted and amplitude scaled version of a spectral profile. Parameters characterizing AF, such as fundamental frequency, amplitude, and waveform of the fibrillation waves, are then extracted from the spectral profile. The waveform of the spectral profile is used to distinguish AF from sinus rhythm and noise, so that occasional episodes of sinus rhythm and noise can be excluded. Using these parameters, 95% of the ECGs from the training set, and 90% from the test set was correctly classified as non-terminating and terminating AF respectively.
AB - Our approach to predicting spontaneous termination of atrial fibrillation (AF) is based on parameters derived from the time-frequency distribution of the residual ECG signal, resulting from spatiotemporal cancellation of QRST complexes. Each consecutive, logarithmically scaled spectrum of the time-frequency distribution of the residual ECG is modeled as a frequency shifted and amplitude scaled version of a spectral profile. Parameters characterizing AF, such as fundamental frequency, amplitude, and waveform of the fibrillation waves, are then extracted from the spectral profile. The waveform of the spectral profile is used to distinguish AF from sinus rhythm and noise, so that occasional episodes of sinus rhythm and noise can be excluded. Using these parameters, 95% of the ECGs from the training set, and 90% from the test set was correctly classified as non-terminating and terminating AF respectively.
KW - Atrial fibrillation (AF)
KW - Spatiotemporal cancellation
KW - Time-frequency distribution
KW - Fibrillation waves
U2 - 10.1109/CIC.2004.1443024
DO - 10.1109/CIC.2004.1443024
M3 - Paper in conference proceeding
VL - 31
SP - 657
EP - 660
BT - Computers in Cardiology
PB - IEEE - Institute of Electrical and Electronics Engineers Inc.
T2 - Computers in Cardiology 2004
Y2 - 19 September 2004 through 22 September 2004
ER -