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Analysis of Changes in the Beat-to-Beat P-wave Morphology Using Clustering Techniques

Publiceringsår: 2009
Språk: Engelska
Sidor: 309-316
Publikation/Tidskrift/Serie: Biomedical Signal Processing and Control
Volym: 4
Dokumenttyp: Artikel


Several pathologies related to the atrial electrical activity can be detected in the electrocardiogram P-wave. A protocol for analyzing P-wave morphology changes has been developed in this article. By using this protocol a study on the beat-to-beat P-wave morphology changes of 89 ECG signals is performed. An
algorithmbased on the embedding space techniques has been used to extract the P-wave information of the ECG. The P-waves obtained in several of these ECGs exhibit significant alternate morphology changes. The morphologies have been classified by using the K-means clustering algorithm. The mechanism behind the P-wave morphology change process and its possible pathophysiological importance remains to be clarified.



  • Cardiac and Cardiovascular Systems
  • ECG wave delineation
  • P-wave morphology
  • K-means clusters
  • Atrial electrical activity


  • LCCC

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