Abstract
This paper presents simulation studies of Laplacian electrocardiograms using a realistically shaped heart-torso model. Body surface Laplacian maps (BSLMs) during normal excitation and abnormal excitation with the Wolff-ParkinsonWhite syndrome are examined in comparison with the body surface potential maps (BSPMs). It shows that the BSLM can distinguish the left ventricular breakthrough with a special pattern, which is not distinguished with BSPM. It also shows that the BSLM has better specificity in discriminating multiple accessory pathways than the BSPM. These simulations theatrically suggest the advantages of Laplacian electrocardiogram as a non-invasive method in exploring the excitation processes of the heart.
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