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This paper proposes a robust algorithm for QRS onset and offset detection in ECG signals. It mainly consists of the computation of an indicator related to the area covered by the QRS complex envelope. This algorithm was initially developed for the detection of T wave end, whose robustness and efficiency for that purpose have been previously reported. Its performances for QRS onset and offset detection...
The electrical activity of the heart shows complex dynamical behavior. This paper presents a nonlinear local projective noise reduction filter for electrocardiograms. In order to automatically detect the best neighborhood size of the projection, recurrence plots are used. The minimum gives a clear indication of the best size of the neighborhood in the embedding space. We also use the box-assisted...
In this paper, we overview the objectives and achievements of the CardioSense3D project dedicated to the construction of an electro-mechanical model of the heart.
This work investigates the relationship between the QT interval and its preceding TQ interval of the electrocardiogram (ECG) recorded under the handgrip isometric exercise. The experimental results at the ECG scale in this work show that the relationship between these intervals is similar to the well established restitution curve observed in isolated cells, between the action potential duration and...
A new algorithm is proposed in this paper for T-wave end location in electrocardiogram (ECG). It mainly consists of the computation of an indicator related to the area covered by the T-wave curve and delimited in a special manner. Based on simple assumptions, essentially on the concavity of the T-wave form, it is proved that the maximum of the computed indicator inside each cardiac cycle coincides...
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