High-Bandpass Filters in Electrocardiography: Source of Error in the Interpretation of the ST Segment
Figure 4
Anomalies in patients with structural heart disease. (a) ECG of a patient with marked left ventricular enlargement. Recording in manual mode yields ST segment depression in I and aVL and inferior aspect elevation that is particularly marked in lead III. (b) ECG of a patient with residual anteroseptal necrosis. An elevated ST segment appears in V1–V3 in the manual recording mode. Auto and manual mode (see Figure 3).
