Authors:
Maxime Yochum
1
;
Charlotte Renaud
2
and
Sabir Jacquir
3
Affiliations:
1
Universié de Rennes 1, France
;
2
Centre Hospitalier Universitaire, France
;
3
Univ. Bourgogne Franche-Comt, France
Keyword(s):
ECG, P, QRS, T Waves, Delineation, Wavelet Transform.
Related
Ontology
Subjects/Areas/Topics:
Biomedical Engineering
;
Biomedical Signal Processing
Abstract:
The electrical field potential of the heart recorded from the thoracic part of the human body is depicted by the
electrocardiogram signal. This last one is complex and depends on many factors: Position of heart, thickness
of the body skin, surface electrode conductivity, acquisition noise and many others. In clinical use, the ECG
signal is analysed using twelve leads but in many works in the literature, the analysis methods of the ECG
is based on two leads. We present a new method to delineate QRS complexes and T and P waves from
electrocardiogram signal. It is based on the continuous wavelet transform. The method is applied on several
leads, recorded simultaneously, to improve the localization of the detection. Indeed, if a delineation method is
applied on only one lead with some disturbances in it, the result of the delineation could be affected. As the
method proposed here merges the result of several leads, the delineation is less affected by disturbances on
few leads. The result
s from this method and from a doctor in medicine are compared. That shows the good
ability to separate waves and the enhancement of delineation accuracy when several leads are used.
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