Source Analysis and Selection Using Block Term Decomposition in Atrial Fibrillation

  • Pedro Marinho R. de OliveiraEmail author
  • Vicente Zarzoso
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10891)


Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia in clinical practice, and is becoming a major public health concern. To better understand the mechanisms of this arrhythmia an accurate analysis of the atrial activity (AA) signal in electrocardiogram (ECG) recordings is necessary. The block term decomposition (BTD), a tensor factorization technique, has been recently proposed as a tool to extract the AA in ECG signals using a blind source separation (BSS) approach. This paper makes a deep analysis of the sources estimated by BTD, showing that the classical method to select the atrial source among the other sources may not work in some cases, even for the matrix-based methods. In this context, we propose two new automated methods to select the atrial source by considering another novel parameter. Experimental results on ten patients show the validity of the proposed methods.


Atrial source selection Block term decomposition Atrial fibrillation Blind source separation 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Pedro Marinho R. de Oliveira
    • 1
    Email author
  • Vicente Zarzoso
    • 1
  1. 1.Université Côte d’Azur, CNRS, I3S Laboratory, CS 40121Sophia Antipolis CedexFrance

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