Constrained temporal extraction of the atrial rhythm in Atrial Fibrillation episodes

Author

Llinares, R. ; Igual, J. ; Salazar, A. ; Vergara, L.

Author_Institution

Department of Communications of the Universidad Politecnica Valencia, Spain

fYear

2008

fDate

20-25 Aug. 2008

Firstpage

1159

Lastpage

1162

Abstract

The extraction of the Atrial Activity from the Ventricular Activity in Atrial Fibrillation episodes is a must for clinical analysis. We follow the semi Blind Source Extraction S-BSE approach to solve the problem. The proposed algorithm modifies the BSE contrast function to satisfy the prior knowledge about the spectral content of the atrial signal. The introduction of this prior allows obtaining a new algorithm with the following advantages: it allows the extraction of only the atrial component and it improves the quality of the recovered atrial signal in terms of spectral concentration as we show in the results.

Keywords

Atrial fibrillation; Data mining; Electrocardiography; Heart; Independent component analysis; Principal component analysis; Rhythm; Separation processes; Signal processing; Source separation; Algorithms; Artificial Intelligence; Atrial Fibrillation; Diagnosis, Computer-Assisted; Electroencephalography; Humans; Oscillometry; Pattern Recognition, Automated; Reproducibility of Results; Sensitivity and Specificity;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE

Conference_Location

Vancouver, BC

ISSN

1557-170X

Print_ISBN

978-1-4244-1814-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2008.4649367

Filename

4649367