Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1814-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2008.4649367
