Creating Electro-Anatomical Mappings of Cardiac Tissue Using Far Field Signals Received At Multiple Distances From An Electrode

A system comprising:

• one or more processors in communication with a plurality of electrodes of a multi-electrode catheter;
• a display;
• and
• a memory in communication with the display and the one or more processors;
• wherein the one or more processors are collectively configured to perform the following for a plurality of locations of cardiac tissue in a heart:
• receive electrical activity of a heart of a patient from a plurality of electrodes of a multi-electrode catheter;
• identify a selected electrode by selecting an electrode from the plurality of electrodes;
• select a first set of electrodes each of which is within a first distance of the selected electrode, wherein the first set of electrodes does not include the selected electrode;
• perform a first spatial electrode signal analysis of the electrical activity of the selected electrode in accordance with signals from the first set of electrodes;
• select a second set of electrodes each of which is within a second distance of the selected electrode, the second distance being greater than the first distance, wherein the second set of electrodes does not include the selected electrode;
• and
• performing a second spatial electrode signal analysis of the electrical activity of the selected electrode in accordance with signals from the second set of electrodes;
• and
• wherein the one or more processors are further collectively configured to generate at least a first electro-anatomical map of the heart depicting electrical activity of cardiac tissue corresponding to each of the plurality of locations, and a second electro-anatomical map of the heart depicting electrical activity of cardiac tissue corresponding to each of the plurality of further locations, wherein the first electro-anatomical map depicts electrical activity or scar tissue identified based on the first spatial electrode signal analysis and the second electro-anatomical map depicts electrical activity or scar tissue identified based on the second spatial electrode signal analysis.

A computer-readable storage medium comprising program code for causing a computer to perform the following for a plurality of locations of cardiac tissue in a heart:

• receive electrical activity of a heart of a patient from a plurality of electrodes of a multi-electrode catheter;
• identify a selected electrode by selecting an electrode from the plurality of electrodes;
• select a first set of electrodes each of which is within a first distance of the selected electrode, wherein the first set of electrodes does not include the selected electrode;
• perform a first spatial electrode signal analysis of the electrical activity of the selected electrode in accordance with signals from the first set of electrodes;
• select a second set of electrodes each of which is within a second distance of the selected electrode, the second distance being greater than the first distance, wherein the second set of electrodes does not include the selected electrode;
• and
• performing a second spatial electrode signal analysis of the electrical activity of the selected electrode in accordance with signals from the second set of electrodes;
• and
• wherein the computer-readable storage medium further comprises program code for causing a computer to generate at least first and second electro-anatomical maps of the heart depicting electrical activity of the cardiac tissue corresponding to the plurality of locations, wherein the first electro-anatomical map depicts electrical activity or scar tissue identified based on the first spatial electrode analysis and the second electro-anatomical map depicts electrical activity or scar tissue identified based on the second spatial electrode signal analysis.