Determination of site of origin for a natural electrical pulse in a living body
First Claim
1. A method for determining a site of origin of a natural electrical pulse in a living body comprising:
- determining a first vector of temporal changes in electrical data measured at a plurality of electrical sensors positioned at a corresponding plurality of locations on an external surface of a living body due to a natural electrical pulse, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor;
determining a different vector of temporal changes in electrical data measured at the plurality of electrical sensors positioned at the corresponding plurality of locations on the external surface of the living body due to each stimulated signal of a plurality of stimulated signals within the living body, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor;
receiving stimulated position data that indicates a different corresponding position within the living body where each of the plurality of stimulated signals originates; and
determining the site of origin of the natural electrical pulse based on the first vector and the plurality of different vectors and the stimulated position data.
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Accused Products
Abstract
Techniques include determining a first vector of temporal changes in electrical data measured at multiple electrical sensors positioned at corresponding locations on a surface of a living body due to a natural electrical pulse. A different vector of temporal changes in electrical data measured at the same electrical sensors is determined due to each stimulated signal of multiple stimulated signals within the living body. Stimulated position data is received, which indicates a different corresponding position within the living body where each of the stimulated signals originates. The site of origin of the natural electrical pulse is determined based on the first vector and the multiple different vectors and the stimulated position data. Among other applications, these techniques allow the rapid, automatic determination of the site of origin of ventricular tachycardia arrhythmia (VT).
8 Citations
13 Claims
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1. A method for determining a site of origin of a natural electrical pulse in a living body comprising:
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determining a first vector of temporal changes in electrical data measured at a plurality of electrical sensors positioned at a corresponding plurality of locations on an external surface of a living body due to a natural electrical pulse, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor; determining a different vector of temporal changes in electrical data measured at the plurality of electrical sensors positioned at the corresponding plurality of locations on the external surface of the living body due to each stimulated signal of a plurality of stimulated signals within the living body, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor; receiving stimulated position data that indicates a different corresponding position within the living body where each of the plurality of stimulated signals originates; and determining the site of origin of the natural electrical pulse based on the first vector and the plurality of different vectors and the stimulated position data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A non-transitory computer-readable medium carrying one or more sequences of instructions for determining site of origin or a natural electrical pulse inside a living body, wherein execution of the one or more sequences of instructions by one or more processors causes the one or more processors to perform the steps of:
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determining a first vector of temporal changes in electrical data measured at a plurality of electrical sensors positioned at a corresponding plurality of locations on an external surface of a living body due to a natural electrical pulse, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor; determining a different vector of temporal changes in electrical data measured at the plurality of electrical sensors positioned at the corresponding plurality of locations on the external surface of the living body due to each stimulated signal of a plurality of stimulated signals within the living body, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor; receiving stimulated position data that indicates a different corresponding position within the living body where each of the plurality of stimulated signals originates; and determining the site of origin of the natural electrical pulse based on the first vector and the plurality of different vectors and the stimulated position data.
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13. A system for determining a site of origin of a natural electrical pulse in a living body comprising:
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means for determining a first vector of temporal changes in electrical data measured at a plurality of electrical sensors positioned at a corresponding plurality of locations on an external surface of a living body due to a natural electrical pulse, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor; means for determining a different vector of temporal changes in electrical data measured at the plurality of electrical sensors positioned at the corresponding plurality of locations on the external surface of the living body due to each stimulated signal of a plurality of stimulated signals within the living body, wherein each vector comprises a plurality of properties of the temporal changes at each electrical sensor; means for receiving stimulated position data that indicates a different corresponding position within the living body where each of the plurality of stimulated signals originates; and means for determining the site of origin of the natural electrical pulse based on the first vector and the plurality of different vectors and the stimulated position data.
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Specification