Automatic detection of wave boundaries in multilead ECG signals: Validation with the CSE database

P Laguna, R Jané, P Caminal - Computers and biomedical research, 1994 - Elsevier
This paper presents an algorithm for automatically locating the waveform boundaries (the
onsets and ends of P, QRS, and T waves) in multilead ECG signals (the 12 standard leads
and the orthogonal XYZ leads). Given these locations, features of clinical importance (such
as the RR interval, the PQ interval, the QRS duration, the ST segment, and the QT interval)
may be measured readily. First, a multilead QRS detector locates each beat, using a
differentiated and low-pass filtered ECG signal as input. Next, the waveform boundaries are …