Patent ID: 9186087
Filing Date: 2015-11-17
Classification: A61B,G16H

Abstract:
1. A computer implemented method for compensating cardiac and respiratory motion in atrial fibrillation ablation procedures, the method executed by a computer comprising the step of: (a) acquiring a series of first 2-D image frames using an imaging system; (b) simultaneously determining a position of a circumferential mapping (CFM) catheter and a coronary sinus (CS) catheter in two consecutive frames of the series of first 2-D image frames; (c) determining a distance between a virtual electrode on the CS catheter and a center of the CFM catheter for a first consecutive image frame of the two consecutive image frames, and for a second consecutive image frame of the two consecutive image frames; and (d) if an absolute difference of the distance for the first consecutive image frame and the distance for the second consecutive image frame is greater than a predetermined threshold, compensating for motion of the CFM catheter in another 2-D image, wherein determining a position of the coronary sinus (CS) catheter comprises: