Key result
Body surface Laplacian mapping outperforms body surface potential mapping in identifying multiple accessory pathways.
Why the study?
The advantages of Laplacian electrocardiogram over body surface potential maps in distinguishing ventricular excitation patterns were not well established.
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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Daming Wei (2001) studied Wolff-Parkinson-White syndrome. Body surface Laplacian maps (BSLMs) vs. Body surface potential maps (BSPMs) was evaluated on Distinguishing left ventricular breakthrough and discriminating multiple accessory pathways. Body surface Laplacian maps successfully distinguished left ventricular breakthrough and demonstrated better specificity in discriminating multiple accessory pathways than body surface potential maps.
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