Stepwise Detection of the QRS Complex in the ECG Signal

Title & Authors
Stepwise Detection of the QRS Complex in the ECG Signal
Kim, Jeong-Hong; Lee, SeungMin; Park, Kil-Houm;

Abstract
The QRS complex of ECG signal represents the depolarization and repolarization activities in the cells of ventricle. Accurate informations of $\small{QRS_{onset}}$ and $\small{QRS_{offset}}$ are needed for automatic analysis of ECG waves. In this study, using the amount of change in the QRS complex voltage values and the distance from the $\small{R_{peak}}$, we determined the junction point from Q-wave to R-wave and the junction point from R-wave to S-wave. In the next step, using the integral calculation based on the connection point, we detected $\small{QRS_{onset}}$ and $\small{QRS_{offset}}$. We use the PhysioNet QT database to evaluate the performances of the algorithm, and calculate the mean and standard deviation of the differences between onsets or offsets manually marked by cardiologists and those detected by the proposed algorithm. The experiment results show that standard deviations are under the tolerances accepted by expert physicians, and outperform the results obtained by the other algorithms.
Keywords
ECG;QRS Complex;QRS Detection;QT Database;
Language
Korean
Cited by
1.
단계별 기저선 정렬을 이용한 ECG 신호에서 P파와 T파 검출 알고리즘,김정홍;이승민;박길흠;

한국멀티미디어학회논문지, 2016. vol.19. 6, pp.1034-1042
1.
P-Waves and T-Wave Detection Algorithm in the ECG Signals Using Step-by-Step Baseline Alignment, Journal of Korea Multimedia Society, 2016, 19, 6, 1034
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