Use of high-pass filtering to detect late potentials in the signal-averaged ECG.
The authors investigate the use of digital filters for analysis of the signal-averaged ECG. They consider the basic types of digital filters and examine respective advantages and disadvantages for ECG analysis. An approach to analyzing the signal-averaged ECG using separate filters for measuring QRS offset and amplitudes is proposed. A study of 19 subjects explores the use of filters to detect low-level activity anywhere in the QRS complex.
Lander
P
P
University of Oklahoma Health Sciences Center, Oklahoma City.
Berbari
E J
EJ
D000200:Action Potentials; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008432:Mathematical Computing; D008722:Methods; D011237:Predictive Value of Tests; D012815:Signal Processing, Computer-Assisted; D013610:Tachycardia / Q000503:physiopathology