Weighted Analysis of Electrodes on Different Sides of a Multi-Electrode Catheter

A system comprising:

• one or more processors in communication with a plurality of electrodes of a multi-electrode catheter;
• and
• a memory in communication with a display and the one or more processors;
• wherein the one or more processors are collectively configured to perform the following for each of a plurality of locations in a heart of a patient:
• receive electrical activity from a multi-electrode catheter within the heart, wherein the multi-electrode catheter has a first plurality of electrodes on a first side and a second plurality of electrodes on a second side,
• wherein at least one of the first plurality of electrodes on the first side is proximate to cardiac tissue at a location and at least one of the second plurality of electrodes on the second side is facing away from the cardiac tissue in the heart;
• wherein the electrical activity is received from at least one electrode on the first side and the at least one electrode on the second side;
• perform a signal analysis of electrical activity at the location of cardiac tissue based on first signals received from the at least one electrode on the first side and second signals received from the at least one electrode on the second side, wherein the signal analysis includes application of a weighting to at least one of the first signal and the second signal;
• and
• generate, based on the signal analysis, at least one electro-anatomical map of the heart depicting electrical activity or scar tissue at each of the plurality of locations in the heart.

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 of a patient:

• receive electrical activity from a multi-electrode catheter within the heart, wherein the multi-electrode catheter has a first plurality of electrodes on a first side and a second plurality of electrodes on a second side,
• wherein at least one of the first plurality of electrodes on the first side is proximate to cardiac tissue at a location and at least one of the second plurality of electrodes on the second side is facing away from the cardiac tissue in the heart;
• wherein the electrical activity is received from at least one electrode on the first side and the at least one electrode on the second side;
• perform a signal analysis of electrical activity at the location of cardiac tissue based on first signals received from the at least one electrode on the first side and second signals received from the at least one electrode on the second side, wherein the signal analysis includes application of a weighting to at least one of the first signal and the second signal;
• and
• generate, based on the signal analysis, at least one electro-anatomical map of the heart depicting electrical activity or scar tissue at each of the plurality of locations in the heart.