System and method for analyzing electrogram waveforms

A system for analyzing electrical signals in the heart, the system comprising:

• a catheter having a proximal and a distal end, said catheter having an array of two or more electrodes at the catheter distal end, said electrodes detecting electrical signals emanating from a site of origin and providing relayed signals representative of the electrical signals detected at the electrode position;
• a receiver for receiving the relayed signals detected by the electrodes;
• each relayed signal provided from a corresponding electrode to the receiver via a channel;
• a processor for processing the relayed signals into beat signals, and computing a quality for one or more of the relayed signals;
• and
• a display for interactively displaying the quality of the relayed signals, wherein said display comprises a plurality of quality representations, wherein each quality representation displays the quality of a relayed signal from a particular electrode, wherein one or more quality representations each displays a beat signal quality and a channel quality for the corresponding relayed signal, wherein one or more quality representations each comprises a numerical readout of the computed quality of the corresponding relayed signal.

In a system for detecting electrical signals within biological tissue, said system having at least one electrode relaying a series of electrical beat signals to an electrode channel, a method of analyzing the relayed beat signals, the method comprising the steps of:

• (a) receiving the relayed beat signal;
• (b) determining a signal parameter for at least two relayed signal beats, the signal parameter related to one or more selected characteristics of the relayed beat signal wherein the signal parameter comprises a quality metric of the relayed beat signals;
• and
• (c) selecting from the relayed beat signals a group of relayed beat signals with the most consistent signal parameter.