Research Article

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

Table 2

Mean and standard deviation of WE values for patients relapsing to AF and maintaining NSR during the first month following cardioversion, statistical significance (P value), sensitivity, specificity, and accuracy for each studied wavelet family. These values were computed and averaged for the 10 analyzed learning sets.

Wavelet family (Order)ECVs relapsing to AFECVs maintaining NSRP valueSensitivitySpecificityAccuracy

Haar0.627 ± 0.0210.512 ± 0.025<0.00187.74%79.09%84.75%
Daubechies ( )0.642 ± 0.0290.521 ± 0.034<0.00187.74%79.09%84.75%
Coiflet ( )0.612 ± 0.0130.502 ± 0.020<0.00187.74%79.09%84.75%
Biorthogonal (4.4)0.625 ± 0.0230.508 ± 0.018<0.00187.74%79.09%84.75%
Reverse Biorthogonal (4.4)0.651 ± 0.0440.549 ± 0.038<0.00187.74%79.09%84.75%
Symlets ( )0.630 ± 0.0310.528 ± 0.033<0.00187.74%79.09%84.75%