Electrocardiographic inverse problem: spatial characterization of the left ventricle potential.
In this work, we present a method for spatial characterization of the electrical activity of the left ventricle (LV). The presented method, electrocardiographic LV imaging, aims at characterization of main morphological features of the LV electrical activity via simple inverse reconstruction of the electrocardiogram on a standard LV segment model. The method is demonstrated with a case study dealing with the spatial characterization of an old myocardial infarction (MI). The results are encouraging: the centroid of the MI region is localized correctly, and the shape of the reconstructed infarcted region is similar to that in the golden standard solution, even though a patient-specific thorax model was not used.
Stenroos
Matti
M
Department of Biomedical Engineering and Computational Science, Helsinki University of Tehchnology, P.O. Box 2200, FI-02015 TKK, Finland. matti.stenroos@tkk.fi
Toivonen
Lauri
L
D018780:Body Surface Potential Mapping / Q000379:methods; D002309:Cardiology / Q000379:methods; D004562:Electrocardiography / Q000295:instrumentation* / Q000379:methods*; D004594:Electrophysiology / Q000379:methods; D006321:Heart / Q000033:anatomy & histology; D006329:Heart Conduction System; D006352:Heart Ventricles / Q000033:anatomy & histology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D056989:Inferior Wall Myocardial Infarction; D008279:Magnetic Resonance Imaging / Q000379:methods; D008953:Models, Anatomic; D008955:Models, Cardiovascular; D012984:Software