Electrocardiogram reconstruction from implanted device electrograms
First Claim
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1. A method, comprising:
- a) providing;
i) a subject exhibiting symptoms of a cardiac disease, wherein said subject has an implanted cardiac device;
ii) a system comprising said implanted cardiac device and a microprocessor wherein said microprocessor comprises a plurality of reconstructed electrocardiogram (rEKG) threshold exceedances, wherein said microprocessor is capable of calculating a subject specific rEKG;
iii) a testing parameter known to detect said cardiac disease;
b) calculating said subject specific rEKG with said microprocessor while said testing parameter is administered to said subject; and
c) comparing said subject specific rEKG to said plurality of rEKG threshold exceedances with said microprocessor by analyzing or displaying said subject-specific rEKG such that said cardiac disease is diagnosed, andd) signaling a warning with said implanted cardiac device about said diagnosed cardiac disease.
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Abstract
A method of reconstruction of the standard 12-lead surface EKG given values of the electrical potential from an implanted medical device is described. This implanted device can be oriented in an arbitrary fashion and reconstruction technique is obtained through physical measurement of the orientation of the implanted device or correlation with a standard 12-lead EKG obtained from the patient.
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Citations
14 Claims
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1. A method, comprising:
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a) providing; i) a subject exhibiting symptoms of a cardiac disease, wherein said subject has an implanted cardiac device; ii) a system comprising said implanted cardiac device and a microprocessor wherein said microprocessor comprises a plurality of reconstructed electrocardiogram (rEKG) threshold exceedances, wherein said microprocessor is capable of calculating a subject specific rEKG; iii) a testing parameter known to detect said cardiac disease; b) calculating said subject specific rEKG with said microprocessor while said testing parameter is administered to said subject; and c) comparing said subject specific rEKG to said plurality of rEKG threshold exceedances with said microprocessor by analyzing or displaying said subject-specific rEKG such that said cardiac disease is diagnosed, and d) signaling a warning with said implanted cardiac device about said diagnosed cardiac disease. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification