Algorithmic techniques for deduction of functional characteristics of cardiac tissue in cardiac electrical fibrillation from a densely packed array of high-resolution electrodes

A method for cardiac mapping of a patient comprising:

• positioning a two-dimensional electrode array at a location in a patient's heart, wherein the two-dimensional electrode array comprises a plurality of electrodes arranged in a nonlinear configuration distributed across the array at known locations and each electrode is separated by a known distance;
• simultaneously detecting at least one local activation signal and activation time at each electrode of the array;
• and
• calculating a conduction velocity (CV) vector for a first electrode of the array using the activation time of the first electrode, the activation time of a second electrode, and the activation time of at least a third electrode to construct a map of cardiac electrical activity, and further determining a single point on the map from which the conduction emanates.