SOCIETY OF NUCLEAR MEDICINE AND MOLECULAR IMAGING IMAGE: TOP: SAMPLE CORONAL AND SAGITTAL SLICES OF ATTENUATION MAPS (1/CM) AND PET IMAGES RECONSTRUCTED WITH VARIOUS RECONSTRUCTION TECHNIQUES WITH AND WITHOUT THE USE OF CT IMAGES. BOTTOM: DIFFERENCE IMAGE BETWEEN THE ATTENUATION MAPS FROM THE JOINT RECONSTRUCTION ALGORITHMS AND CT-BASED IMAGES (1/CM). THE PLOT ON THE BOTTOM...