Research Article

Application of Wavelet Entropy to Predict Atrial Fibrillation Progression from the Surface ECG

Figure 4

Typical ECG interval together with its extracted AA signal for (a) a patient who maintained NSR (WE = 0.511) and (b) others relapsing to AF (WE = 0.633) during the first month after cardioversion.
245213.fig.004a
(a)
245213.fig.004b
(b)