System and method of identifying sources associated with biological rhythm disorders

A method of identifying a source of a heart rhythm disorder, the method comprising receiving at a computing device a plurality of cardiac signals associated with sensors arranged spatially in relation to regions of the heart and the computing device:

• selecting a spatial element associated with a sensor corresponding to a region of the heart;
• determining progressive rotational activations or progressive focal activations in relation to the selected spatial element over a period of time;
• repeating the selecting and determining over multiple periods of time;
• determining an index of rotational activations or focal activations, wherein the index indicates consistency of successive rotational activations or focal activations in relation to a portion of the region of the heart;
• repeating the determining of an index for multiple regions of the heart;
• identifying the source of the heart rhythm disorder based on the determined index;
• and
• displaying a representation of the identified source of the heart rhythm disorder.

A method of determining one or more sources of a heart rhythm disorder, the method comprising receiving at a computing device a plurality of cardiac signals associated with sensors arranged spatially in relation to regions of the heart and the computing device:

• selecting a spatial element associated with a sensor corresponding to a region of a heart;
• determining progressive rotational activations or progressive focal activations in relation to the selected spatial element;
• determining a plurality of indexes of progressive rotational activations or progressive focal activations over time;
• selecting from the plurality of indexes one or more indexes that indicate consistency of the progressive rotational activations or progressive focal activations to determine the one or more sources of the heart rhythm disorder;
• and
• displaying a representation of the one or more indexes to identify one or more shapes representing the one or more sources of the heart rhythm disorder.