Influence of ischemic and infarcted tissue on the surface potential

The influence of ischemic and infarcted tissue on the body-surface potential was investigated. A cellular automaton was employed for modeling the heart's specialized conduction system, junction points, action potentials, and fiber orientation. The cellular automaton generated a transmembrane po...

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Bibliographic Details
Main Authors: Hanser, F., Seger, M., Tilg, B., Modre, R., Fischer, G., Messnarz, B., Hintringer, F., Berger, T., Roithinger, F.X.
Format: Conference Proceeding
Language:English
Subjects:
Anisotropic magnetoresistance
Automata
Biomedical signal processing
Conducting materials
Conductivity
Conductors
Electrocardiography
Heart rate
Ischemic pain
Myocardium
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Summary:The influence of ischemic and infarcted tissue on the body-surface potential was investigated. A cellular automaton was employed for modeling the heart's specialized conduction system, junction points, action potentials, and fiber orientation. The cellular automaton generated a transmembrane potential distribution providing the source distribution for the electrocardiographic forward problem. The body-surface potential was calculated with a bidomain-based forward model of a patient's volume conductor. Several scenarios were simulated including anterior and posterior myocardial infarction. The simulations demonstrated the influence on the body-surface potential displaying ST elevations and depressions as well as changes in polarity depending on the location of the ischemic region and electrode position.
ISSN:0276-6547
DOI:10.1109/CIC.2003.1291275