Patent ID: 7937136

Claim:
A method comprising: inserting a catheter into a heart cavity having an endocardium surface, the catheter comprising multiple, spatially distributed electrodes; measuring signals at the catheter electrodes in response to electrical activity in the heart cavity; determining physiological information at multiple locations of the endocardium surface based on the measured signals and positions of the catheter electrodes with respect to the endocardium surface, wherein determining the physiological information comprises determining the physiological information based at least in part on a mathematical operator approximating Laplace's equation; computing values indicative of a degree of spatial resolution of the determined physiological information for at least some of the locations of the endocardium surface, the degree of spatial resolution being based at least in part on a distance between the catheter electrodes and the endocardium surface; and displaying information related to at least some of the determined physiological information and information related to at least some of the computed resolution values.