Patent ID: 7930018
Filing Date: 2011-04-19
Classification: A61B

Abstract:
1. A method comprising: inserting a catheter into a heart cavity having an endocardium surface, the catheter comprising multiple, spatially distributed electrodes; moving the catheter to each of multiple, different positions in the heart cavity; for each of the different catheter positions, determining the positions of the catheter electrodes with respect to the endocardium surface and measuring signals at the catheter electrodes in response to electrical activity in the heart cavity; and determining physiological information at multiple locations of the endocardium surface based on the determined positions of the catheter electrodes and the measured signals at the different catheter positions; wherein determining the physiological information comprises determining the physiological information based at least in part on a mathematical operator; the signals are measured for at least one electrical heart cycle for each catheter position; the determination of the physiological information at the multiple locations of the endocardium surface comprises synchronizing the signals measured at the different catheter positions with one another according to an electrical heart beat cycle; and the determination of the physiological information at the multiple locations of the endocardium surface further comprises processing the synchronized signals as though they were obtained at one time from all of the positions sampled by the catheter electrodes for the different positions of the catheter in the heart cavity.