Table 1.

Percentage of high correlation coefficient values between PSD of the artifact-free ECG and the corresponding corrupted and filtered signals.

Rhythm Type	% of Correlation Coefficient > 0.7 between Artifact-Free and CPR-Contaminated ECG	% of Correlation Coefficient > 0.7 between Artifact-Free and ECG after Removing Artifacts’ Highest Frequency Peaks	% of Correlation Coefficient > 0.7 between Artifact-Free and ECG after Removing Artifacts’ 1st and 2nd Frequency Peaks
Non-shockable	18.1%	64%	75.4%
Shockable	18.5%	77.7%	66.5%