KHADDOUMI , Balkine

This work is situated in the analysis of the arrhythmia rhythm disorders of the heart, and more particularly of those resulting from problems of the ventricles. Two problems were tackled which require specific methods in signal processing. The first relates to the study of episodes of Ventricular Fibrillation (VF) obtained from human beings...

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Recent mathematical methods, dealing with shape analysis and shape clustering are presented. The advantage of taking signal shape into account is shown in an application to High Resolution ECG Mapping: the spatial dispersion of the ECG waves recorded with a 64 lead device, and mainly the T-wave, is well correlated with the presence of...

The analysis of heart period series is a difficult task especially under graded exercise conditions. From all the information present in these series, we are the most interested in the coupling between respiratory and cardiac systems, known as respiratory sinus arrythmia. In this paper, we show that precise patterns concerning the respiratory...

The analysis of heart period series is a difficult task especially under graded exercise conditions. From all the information present in these series, we are the most interested in the coupling between respiratory and cardiac systems, known as respiratory sinus arrythmia. In this paper, we show that precise patterns concerning the respiratory...

The analysis of heart period series is a difficult task especially under graded exercise conditions. From all the information present in these series, we are the most interested in the coupling between respiratory and cardiac systems, known as respiratory sinus arrythmia. In this paper, we show that precise patterns concerning the respiratory...

International audience

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An increased beat to beat variability of ECG waves shapes (mainly QRS), along the time, has yet been observed in patients with some pathological cardiac conditions. The aim here is to present a method to measure spatial shape variability of ECG waves recorded, at a fixed time, from a Body Surface Potential Mapping (BSPM) device with 64...

The spatial distribution of the shape of the electrocardiography (ECG) waves obtained by body surface potential mapping (BSPM) is studied, using a 64-channel high-resolution ECG system. The index associated to each lead is the shape difference between its ECG wave and a reference computed taking into account all the leads on the same column....

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