State-space averaging for maternal ECG suppression

• Autorzy: Kotas M. , Jeżewski J. , Kupka T. , Matonia A.
• Języki publikacji: EN

Abstrakty

EN

In this paper a new method of maternal electrocardiogram suppression for fetal component extraction from one-channel maternal abdominal bioelectric signals is proposed. The method performs maternal ECG estimation by application of state-space averaging. The estimated signal is subtracted from the original one and this way suppressed. The method parameters allow us to balance between the precision of maternal ECG suppression and the necessity not to attenuate the fetal QRS complexes. A small database of the maternal abdominal bioelectric signals is used to investigate the developed system for fetal heart rate determination. The final assessment is based on the detection performance index. It is shown that by proper choice of the parameters we can tune the system so that it is more effective than the classical approach based on template subtraction.

Słowa kluczowe

EN

fetal ECG; QRS detector; dynamic time warping; embedding operation

PL

EKG płodu; detektor QRS

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2009
• Tom: Vol. 13
• Strony: 194--200
• Opis fizyczny: Bibiliogr. 9 poz., rys., tab.

Twórcy

autor

Kotas M.

• Institute of Electronics, Silesian University of Technology, Gliwice, Poland

autor

Jeżewski J.

autor

Kupka T.

autor

Matonia A.

Bibliografia

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• [2] DE LATHAUWER L., CALLAERTS D., DE MOOR B., VANDEWALLE J., "Fetal electrocardiogram extraction by source subspace separation," Proc. IEEE SP/ATHOS Workshop on HOS, Girona, Spain, 1995, pp.134-138.
• [3] JEŻEWSKI J., WRÓBEL J., HOROBA K., Comparison of Doppler Ultrasound and Direct Electrocardiography Acquisition Techniques for Quantification of Fetal Heart Variability, IEEE Trans. Biomed. Eng., vol. 53, 2006, pp. 855-864.
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• [6] KOTAS M., Combined application of independent component analysis and projective filtering to fetal ECG extraction, Biocyb. Biomed. Eng., vol. 28, 2008, pp. 75-93.
• [7] KOTAS M., JEŻEWSKI J., KUPKA T., HOROBA K., Detection of low amplitude fetal QRS complexes, Proc. of 30th IEEE/EMBS Conf., 2008, pp. 4764-4767.
• [8] MATONIA A., JEŻEWSKI J., HOROBA K., GACEK A., The Maternal ECG Suppression Algorithm for Efficient Extraction of the Fetal ECG from Abdominal Signal, Proc. IEEE EMBS Conf., New York City, USA, 2006, pp. 3106-3109.
• [9] SCHREIBER T., Extremely simple nonlinear noise-reduction method, Physical Review E, Vol.47, No. 4, 1993, pp. 2401-2404.