High-Bandpass Filters in Electrocardiography: Source of Error in the Interpretation of the ST Segment

<table>Reproduction of the ECG signal with the sum of the successive harmonics. The sum of the first 30–50 harmonics yielded a near-perfect reproduction of the ECG signal at the expense of small changes in QRS amplitude. The sum of the 169 selected harmonics reproduces in identical form the original signal.</table>

International Scholarly Research Notices

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Figure 9

Figure 9: High-Bandpass Filters in Electrocardiography: Source of Error in the Interpretation of the ST Segment 