Systems and methods for on-site and real-time electrocardiographic imaging (ECGI)
First Claim
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1. A method comprising:
- computing, by a computer comprising a processor, a transfer matrix representing a relative influence that each of the respective electrode locations for the measured electrical potentials has on the estimation of electrical potentials for the locations on the surface of interest prior to measuring the plurality of electrical potentials;
measuring the plurality of electrical potentials via the plurality of electrodes at respective electrode locations on a patient'"'"'s body;
receiving, by the computer, data corresponding to the plurality of electrical potentials measured via the plurality of electrodes at respective electrode locations; and
computing, by the computer, an estimation of electrical potentials for locations on a surface of interest based at least in part on the measured plurality of electrical potentials and the computed transfer matrix, wherein the locations on the surface of interest are different from the electrode locations; and
displaying an image of the surface of interest including the estimated electrical potentials for locations on the surface of interest.
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Abstract
A computer-implemented method for electrocardiographic imaging (ECGI) is provided. The method includes computing a transfer matrix, measuring a plurality of electrical potentials, and computing an estimation of electrical potentials on a surface of interest based at least in part on the measured potentials and the computed transfer matrix. The transfer matrix computing step is performed prior to the measuring step.
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Citations
17 Claims
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1. A method comprising:
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computing, by a computer comprising a processor, a transfer matrix representing a relative influence that each of the respective electrode locations for the measured electrical potentials has on the estimation of electrical potentials for the locations on the surface of interest prior to measuring the plurality of electrical potentials; measuring the plurality of electrical potentials via the plurality of electrodes at respective electrode locations on a patient'"'"'s body; receiving, by the computer, data corresponding to the plurality of electrical potentials measured via the plurality of electrodes at respective electrode locations; and computing, by the computer, an estimation of electrical potentials for locations on a surface of interest based at least in part on the measured plurality of electrical potentials and the computed transfer matrix, wherein the locations on the surface of interest are different from the electrode locations; and displaying an image of the surface of interest including the estimated electrical potentials for locations on the surface of interest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a signal acquisition device comprising a plurality of electrical inputs to receive a plurality of electrical potential measurements from electrodes to be arranged at respective locations on a patient'"'"'s body to measure the plurality of respective electrode locations; and a processing device comprising a processor programmed to; compute a transfer matrix representing a relative influence that each of the respective electrode locations for the measured electrical potentials has on the estimation of electrical potentials for the locations on the surface of interest prior to measuring the plurality of electrical potential measurements; receive the plurality of electrical potential measurements from the signal acquisition device; and compute an estimation of electrical potentials on a cardiac surface of interest based at least in part on the plurality of electrical potential measurements and the computed transfer matrix, wherein the processor is programmed to perform the transfer matrix computation in the absence of the electrical potential measurements, wherein the locations on the surface of interest are different from the electrode locations; and a display to display an image of the cardiac surface of interest and either the estimation of the electrical potentials for the locations on the cardiac surface of interest or information derived from the estimation of the electrical potentials for locations on the cardiac surface of interest. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification