Assessing intra-cardiac activation patterns

A system comprising:

• a plurality of electrodes;
• and
• a processing unit configured to:
• receive a torso-surface potential signal from each electrode of the plurality of electrodes, wherein the received torso-surface potential signals comprise torso-surface potential signals sensed during delivery of cardiac therapy to a patient in accordance with each therapy parameter setting of a plurality of different therapy parameter settings,
• for each therapy parameter setting, determine, for each electrode of the plurality of electrodes, a torso-surface activation time based on the torso-surface potential signal sensed from the respective electrode during delivery of cardiac therapy in accordance with the respective therapy parameter setting, and
• present, via a display, indications of the torso-surface activation times for the plurality of therapy parameter settings.

A method comprising:

• receiving, by a processing unit, torso-surface potential signals from a plurality of electrodes distributed on a torso of a patient, wherein the received torso-surface potential signals comprise torso-surface potential signals sensed during delivery of cardiac therapy to the patient in accordance with a plurality of different therapy parameter settings;
• for each therapy parameter setting, determining, by the processing unit and for each electrode of the plurality of electrodes, a torso-surface activation time based on the torso-surface potential signal sensed from the respective electrode during delivery of cardiac therapy in accordance with the respective therapy parameter setting;
• and
• presenting, by the processing unit, indications of the torso-surface activation times for the plurality of therapy parameter settings via a display.