Heart analysis method and apparatus
AssigneeCuoretech Pty Ltd.
InventorsAndrew Madry, Stuart Philip Thomas
Life of this patent
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Abstract
A method and device for monitoring heart behavior. In particular, a visual aid for clinician in which regions of the heart having aberrant characteristics can be displayed. A number of electrodes are positioned near/on an endocardium; electrical signals from the electrodes are monitored and recorded. A variability of a time varying parameter is calculated from each electrode location and displayed on a cardiac image. A user can select the parameter and measurement properties of the parameter, wherein the variability of the parameter is displayed and aberrant behavior can be detected.
Claims34
A method of identifying cardiac regions having aberrant conductive properties including steps of:
- measuring a plurality of electrical signals from an endocardium wherein the measuring includes a time sequence;
- recording positions of each electrical signal;
- calculating a time varying parameter from the measured time sequence of electrical signals;
- computing a time-series variability of the time varying parameter over a selected duration from said electrical signals to thereby monitor the temporal variability of the time varying parameter which represents the continuous variation of an instantaneous value of the time varying parameter;
- and
- displaying said time-series variability at said positions on a cardiac image.
A system of identifying cardiac regions having aberrant conductive properties including:
- a plurality of electrodes measuring electrical signals from an endocardium wherein the measuring includes a time sequence;
- a recording device recording a position for each electrical signal;
- a calculating device calculating a time varying parameter from the measured time sequence of electrical signals;
- a computing device calculating a time-series variability of a time varying parameter over a selected duration from said electrical signals to thereby monitor the temporal variability of the time varying parameter which represents the continuous variation of an instantaneous value of the time varying parameter;
- and
- a display device displaying said time-series variability at said position on a cardiac image.
A computer program having a computer readable medium having a computer program logic recorded thereon for identifying cardiac regions having aberrant conductive properties, said computer program product comprising:
- means for measuring a plurality of electrical signals from an endocardium wherein the measuring includes a time sequence;
- means for recording positions of each electrical signal;
- means for calculating a time varying parameter from the measured time sequence of electrical signals;
- means for calculating a time-series variability of a time varying parameter over a selected duration from said electrical signals to thereby monitor the temporal variability of the time varying parameter which represents the continuous variation of an instantaneous value of the time varying parameter;
- means for displaying said time-series variability at said positions on a cardiac image.
A cardiac monitor comprising:
- a plurality of electrodes arranged over an endocardial surface;
- a signal receiver adapted to detect a time-series of electrical signals from said electrodes;
- a detection device tracking positions of each said electrode of the plurality of electrodes;
- a calculating device calculating a time varying parameter from the measured time sequence of electrical signals;
- a computer device calculating a time-series variability of a time varying parameter over a selected duration from said electrical signals to thereby monitor the temporal variability of the time varying parameter which represents the continuous variation of an instantaneous value of the time varying parameter;
- and
- a visual device displaying said time-series variability at said positions on a cardiac image.
Dependencies are inferred from the claim text.