Patent ID: 7306593

Claim:
Apparatus for ablating cardiac tissue in a heart of a subject, comprising: a catheter, which is adapted to be inserted into the body and within the heart so as to contact the cardiac tissue to be ablated at a desired position in the heart, the catheter comprising: at least one sensor, which measures one or more local parameters at the position prior to and after ablating the tissue and a position sensor which generates signals for determining position and orientation coordinates of the distal end of the catheter; and an ablation device, which applies a given dosage of energy to the tissue so as to ablate the tissue; a display, which displays a map of the heart; and a controller, which determines the position and orientation coordinates of the distal end of the catheter using the signals generated by the position sensor and generates the map showing, based on the one or more local parameters measured by the at least one sensor, a predicted extent of ablation of the tissue to be achieved for the given dosage of energy, and an actual extent of the ablation determined subsequent to ablating the tissue, for comparison with the predicted extent using the position and orientation coordinates.