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Methods Inf Med 2000; 39(02): 164-167
DOI: 10.1055/s-0038-1634273
Original Article
Schattauer GmbH

Spatial Filtering Methods for Local Activation Determination in Fractionated Electrograms from Simulated Infarcted Hearts

I. Chouvarda
1   Aristotelian University, Lab of Medical Informatics, The Medical School, Thessaloniki, Macedonia, Greece
,
N. Maglaveras
1   Aristotelian University, Lab of Medical Informatics, The Medical School, Thessaloniki, Macedonia, Greece
,
J. de Bakker
2   University of Amsterdam, Lab of Experimental Cardiology, Amsterdam, The Netherlands
,
F. J. L. van Capelle
2   University of Amsterdam, Lab of Experimental Cardiology, Amsterdam, The Netherlands
,
C. Pappas
1   Aristotelian University, Lab of Medical Informatics, The Medical School, Thessaloniki, Macedonia, Greece
› Author Affiliations
Further Information

Publication History

Publication Date:
07 February 2018 (online)

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Abstract:

The purpose of this work is the enhancement of local activation in multiphasic extracellular recordings coming from infarcted myocardial tissue and, consequently, the distinction of local from distal activation. Deconvolution procedures are applied, in the form of spatial filtering, in order to estimate transmembrane currents from the extracellular recordings. Simulated data are used in order to test the methods. The current source estimates are compared to the actual transmembrane currents and to Laplacian estimates.

Keywords:

Local Activation - Electrogram - Deconvolution
 

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