Systems and methods for analyzing cardiac biopotential morphologies by cross-correlation
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United States of America Patent
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Aug 11, 1998
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app pub date -
Oct 21, 1997
filing date -
Feb 17, 1995
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Abstract
An analog or digital processing element and associated method analyses electrograms or electrocardiograms to locate sites potentially appropriate for ablation. The element and method compares a first number of electrogram or electrocardiogram samples recorded over time during a cardiac event of known diagnosis with a second number of paced electrogram or electrocardiogram samples recorded over time. The comparison cross-correlates the first number of electrogram samples with the second number of paced electrogram samples. The element and method generate an output based upon the cross-correlation. The element and method compare the output to a predetermined value to determine whether a pacing site for the paced electrogram or electrocardiogram samples is near to a potential ablation site.
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