Key result
Electrocardiographic imaging accurately located epicardial pacing sites to within 1.5 cm and resolved two simultaneously paced sites to 2.5 cm in an experimental dog heart model.
Why the study?
Does electrocardiographic imaging accurately locate ventricular epicardial pacing sites in an experimental dog heart model?
Does electrocardiographic imaging accurately locate ventricular epicardial pacing sites in an experimental dog heart model?
Electrocardiographic imaging demonstrates the ability to noninvasively locate single and simultaneous epicardial pacing sites with high spatial resolution in an experimental model.
Should not change practice; hypothesis-generating for electrocardiographic imaging in human epicardial mapping.
The goal of this work is to demonstrate the ability of electrocardiographic imaging to identify and locate ventricular epicardial pacing sites. Using a dog heart suspended in an electrolytic torso tank, epicardial sites were paced, simulating an ectopic focus. The inverse problem was solved using the measured torso potential data, and the results were evaluated with respect to the measured epicardial data. Pacing sites were located to within one electrode position (1.5 cm), and two sites paced simultaneously were resolved to 2.5 cm.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Oster et al. (2002) studied this question. Electrocardiographic imaging vs. Measured epicardial data was evaluated on Location and resolution of pacing sites. Electrocardiographic imaging accurately located epicardial pacing sites to within 1.5 cm and resolved two simultaneously paced sites to 2.5 cm in an experimental dog heart model.
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