1. A method for treating tissue in a body volume with a surgical device, the method comprising the steps of: collecting baseline image data associated with the body volume using an imaging device; creating an image from the baseline image data; displaying the image on a display screen; selecting at least one tissue target in the body volume for treatment; collecting respiration image data associated with the tissue target during at least one respiration cycle of the body volume; tracking the tissue target during the at least one respiration cycle; determining a dwell position of the tissue target; creating a dwell position image using the respiration image data collected while the tissue target is located at the dwell position; and displaying the dwell position image on a display screen.