Various embodiments concern delivering an ablation therapy to different areas of the cardiac tissue and, for each of the areas, sensing an ultrasound signal with at least one ultrasound sensor, the ultrasound signal responsive to the ultrasound energy reflected from the area of cardiac tissue. Such embodiments can further include for each of the plurality of different areas of the cardiac tissue, associating with each area an indication of the degree to which the area of cardiac tissue was lesioned by the delivery of the ablation therapy based on the ultrasound signal and representing a map of the different areas on a display. A user input can select one of the different areas and the indication associated with the selected one area can be represented on the map.
