1. A method for executing a scanning procedure comprising the steps of: (a) generating CT image data for a scan; (b) generating CT attenuation correction data for the scan; (c) acquiring a current frame of PET data for the scan in a 3D format; and (d) simultaneously conducting the following steps: reconstructing at least a portion of a PET image for the current frame, including the step of overlapping a portion of the current frame with an adjacent frame, and acquiring at least a portion of a next frame of PET data.