Systems and methods for analyzing biopotential morphologies in body tissue using iterative techniques

摘要

Systems and methods analyze biopotential morphologies in myocardial tissue by comparing a template of a cardiac event of known diagnosis to one or more samples of a paced cardiac event. The systems and methods generate an output based upon the comparison. The comparison yields an output, which indicates how alike the input sample is to the input template. The output can be used by the physician, for example, to aid in the location of sites that are potentially appropriate for ablation. The systems and methods employing different pacing and/or comparative techniques to provide multiple outputs. The pacing techniques that the systems and methods employ can comprise entrainment pacing or pace mapping. Various alternative comparison techniques include matched filtering, cross correlation, norm of the difference, and symmetry matching.