Fig. 4From: Three-dimensional dominant frequency mapping using autoregressive spectral analysis of atrial electrograms of patients in persistent atrial fibrillationPercentage of agreement between the DF calculated using FFT and the DF calculated using the AR spectral analyses techniques with different re-sampling frequencies for the 2048 AEGs during 20.478 s (3 × 6.826 s). Error bars represent 95 % confidence intervalsBack to article page