Computer simulation comparison of tripolar, bipolar, and spline Laplacian electrocadiogram estimators.
A comparison of the performance of the tripolar and bipolar concentric as well as spline Laplacian electrocardiograms (LECGs) and body surface Laplacian mappings (BSLMs) for localizing and imaging the cardiac electrical activation has been investigated based on computer simulation. In the simulation a simplified eccentric heart-torso sphere-cylinder homogeneous volume conductor model were developed. Multiple dipoles with different orientations were used to simulate the underlying cardiac electrical activities. Results show that the tripolar concentric ring electrodes produce the most accurate LECG and BSLM estimation among the three estimators with the best performance in spatial resolution.
Chen
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Louisiana Tech University, Department of Biomedical Engineering, LA, USA. tingwithers@yahoo.com
Besio
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Dai
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D000465:Algorithms; D018780:Body Surface Potential Mapping / Q000379:methods; D002304:Cardiac Pacing, Artificial; D003198:Computer Simulation; D004562:Electrocardiography / Q000295:instrumentation* / Q000379:methods*; D004566:Electrodes; D004867:Equipment Design; D006329:Heart Conduction System / Q000502:physiology; D006801:Humans; D008953:Models, Anatomic; D008955:Models, Cardiovascular; D015233:Models, Statistical; D012815:Signal Processing, Computer-Assisted