1. A method for analyzing stored frames of time-stamped imaging data and time-stamped physiologic data obtained during a study of a patient during a plurality of cardiac cycles, said imaging data comprising frames representative of a succession of images of the patient's heart; said method comprising utilizing a computer to: analyze the stored physiologic data to determine times of a selected phase in the plurality of cardiac cycles; select, in the plurality of cardiac cycles, stored images corresponding to the determined times of the selected phase; and align and average images corresponding to the selected phase across the plurality of cardiac cycles to produce a single representative frame of image data.