A system and method for imaging a target in a patients body includes the steps of providing a pre-acquired image (100) of the target and placing a catheter (28) having a position sensor (32), an ultrasonic imaging sensor (40) and at least one electrode (46), in the patients body. Positional information of a portion of the catheter in the patients body is determined using the position sensor and electrical activity data-points of a surface of the target are acquired using the at least one electrode. An ultrasonic image of the target is obtained using the ultrasonic imaging sensor and positional information for the electrical activity data-points of the surface of the target is determined. An electrophysiological map (90) of the target is generated based on the electrical activity data-points and the positional information for the electrical activity data-points. Positional information for any pixel of the ultrasonic image of the target is determined and the pre-acquired image and the electrophysiological map are registered with the ultrasonic image. The registered preacquired image, electrophysiological map and ultrasonic image are displayed on a display (44).
