Continuous localization and guided treatment of cardiac arrhythmias
First Claim
1. An arrhythmia localization method making use of a database, the database including known heart signals and associated discrete known ectopic or exit sites, the arrhythmia localization method comprising:
- measuring heart signals during an arrhythmia; and
identifying a candidate ectopic or exit site which is different than the known sites by comparing the measured heart signals to a plurality of known heart signals.
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Accused Products
Abstract
Systems, devices, and methods localize and/or treat arrhythmias of a heart of a patient using signals sensed at an accessible body surface. Based on a database of known heart signals and associated ectopic origin sites or exit sites for treatment guidance, continuous localization identifies candidate ectopic or exit sites throughout a continuous region of tissue. An integral from a selected time interval of a reference heart cycle can be compared statistically with known body surface maps. Statistical interpolation can identify a candidate ectopic or exit site which is different than the known ectopic or exit sites. Relative localization provides accurate site identification from one or more known pacing sites (and the associated heart signals) taken from the patient.
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Citations
33 Claims
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1. An arrhythmia localization method making use of a database, the database including known heart signals and associated discrete known ectopic or exit sites, the arrhythmia localization method comprising:
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measuring heart signals during an arrhythmia; and
identifying a candidate ectopic or exit site which is different than the known sites by comparing the measured heart signals to a plurality of known heart signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An arrhythmia localization system comprising:
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a database having known heart signals and associated discrete known ectopic or exit sites;
a heart signal sensor array for measuring heart signals during an arrhythmia; and
a processor coupled to the database and the sensor array, the processor calculating a candidate ectopic or exit site, which is different than the known sites, in response to the measured heart signals and the known heart signals. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification