1. A method for imaging, the method comprising: obtaining image information including image timing information; obtaining motion information corresponding to an external movement by a patient being imaged, the motion information including motion timing information, wherein obtaining the motion information comprises detecting motion of the patient with a sensing device that does not engage the patient; associating the motion information with the image information using the image timing information and the motion timing information; and forming an image representative of a portion of the patient using the associated image and motion information.