Surgery – Diagnostic testing – Cardiovascular
Patent
1997-10-21
1999-09-21
Jastrzab, Jeffrey R.
Surgery
Diagnostic testing
Cardiovascular
A61B 504, A61N 136
Patent
active
059546620
ABSTRACT:
Systems and methods acquire electrocardiograms using a first electrode associated with a region of heart tissue and a second body surface electrode. An analog or digital processing element is coupled to the first and second electrodes for conditioning the first electrode to emit a pacing signal and for conditioning the second electrode to sense paced electrocardiograms occurring as a result of the pacing signal. The systems and methods also employ a template of an electrocardiogram of a cardiac event of known diagnosis; for example an arrhythmia that the physician seeks to treat. The systems and methods compare this event-specific template to a sample of a paced electrocardiogram. The comparison yields a matching coefficient indicating how alike the input sample is to the input template. The matching coefficient can be used by the physician, for example, to aid in the location of sites that are potentially appropriate for ablation.
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Panescu Dorin
Swanson David K.
Whayne James G.
EP Technologies, Inc.
Jastrzab Jeffrey R.
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