Resolution of QRS Complexes in ECG Signals for Defibrillation and Cardioversion Procedures

摘要

Defibrillation and cardioversion are therapeutic procedures used for patients with cardiac rhythm disorders [1, 2]. During cardioversion, an electrical defibrillation pulse is synchronized with the ECG QRS complex [3-5]. There are many algorithms of identification of ECG QRS complexes. Most algorithms are based on ECG signal amplitude parameters [6]. Maximal amplitude of ECG signal in healthy subjects is inherent in R-wave of the QRS complex [7]. Patients with various cardiac pathologies demonstrate variable ECG signals. The goal of this work was to suggest resolution of QRS complexes in ECG signals for defibrillation and cardioversion procedures. The QRS identification algorithm is based on additive threshold amplitude values and ECG signal increase rate.