Integrated assessment of electrical activation and myocardial strain

A method for anatomical diagnosis, comprising:

• measuring, using a catheter comprising a position sensor, over multiple cycles of a beating heart, mechanical motion at a plurality of locations contacted by the catheter on a heart wall within a left ventricle of the heart;
• based on the measured mechanical motion, computing a mechanical strain at a diastolic phase of the cycles at the locations;
• and
• identifying a group of the locations at which a peak timing of the mechanical strain is not synchronous.

A system for treating a pathological condition in a heart, comprising:

• a catheter having a distal end configured for insertion into a chamber of a beating heart, the catheter comprising a position sensor and an electrode;
• a display;
• and
• a processor, which is configured to:
• receive position signals from the position sensor over multiple cycles of the beating heart, from a plurality of locations contacted by the catheter on a heart wall within a left ventricle of the heart,
• receive electrical signals from the electrode over multiple cycles of the beating heart, from the plurality of locations,
• compute, based on the position signals, a mechanical strain at a diastolic phase of the multiple cycles,
• determine, based on the electrical signals, an electrical activity of the heart,
• identify, based on the mechanical strain and the electrical activity, a feature of diagnostic interest;
• and
• display the feature of diagnostic interest on the display.