An alternative to the classical ECG filtering : a polynomial approach based on shape features

• Autorzy: Meste O. , Rix H. , Maniewski R.
• Języki publikacji: EN

Abstrakty

EN

A new filtering technique for high-resolution ECG signals processing is proposed. The filter is based on approximation of the electrocardiogram segments by polynoms of low degree with possibility of including smoothing constraints at the frontier points. The segments localization, the polynomial degree and the continuity constraints are discussed in details. Finally it is shown that the proposed filter, without continuity cinstraints is FIR, linear and shift invariant. The filter may find application in analysis of the heart micropotentials, especially late potentials. In this case the idea is to match the filter to the high amplitude segments of the ECG in order to limit their influence in the part of the signal where micropotentials are expected. The preliminary results obtained for post-infartion patients show that the filtration allows for clear detection ob abnormal electrical activity in the terminal part of the QRS complex.

Słowa kluczowe

EN

polynomial filtering; high resolution ECG; late potentials

PL

filtrowanie wielomianowe; elektrokardiogram; potencjały późne

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2003
• Tom: Vol. 23, no. 1
• Strony: 27--39
• Opis fizyczny: Bibliogr. 5 poz., wykr.

Twórcy

autor

Meste O.

• Lab. I3S, University of Nice-Sophia Antipolis, France

autor

Rix H.

• Lab. I3S, University of Nice-Sophia Antipolis, France

autor

Maniewski R.

• Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland

Bibliografia

• [1] Jane R., Laguna P., Caminal P: Filtering techniques for ventricular late potentials analysis' Int. Conf. IEEE EMBS 1992, 545-546.
• [2] Jane R., Caminal P., Rix H., Thierry E., Laguna P.: Improved alignment methods in ECG signal averaging: application to late potentials detection. Int. Conf. IEEE EMBS 1989, 481-482.
• [3] Simson M.B: Use of signal in the terminal QRS complex to identify patients with ventricular tachycardia after myocardial infarction. Circulation 1981, 64, 235-242.
• [4] Meste O.: Contribution a Fanalyse de signaux non-stationnaires: application a l’etude de signaux biomedicaux. These de Doctorat Sciences, University of Nice-Sophia Antipolis, 1992.
• [5] Lewandowski P., Meste O., Maniewski R., Mroczka T., Steinbach K., Rix H.: Risk evaluation of ventricular tachycardia using wavelet transform irregularity of the high-resolution electrocardiogram. Med. Biol. Eng. Comput. 2001, 38, 666-673.