Are There New Molecular Imaging Modalities Behind the Corner

The diagnostic work-up of locally advanced rectal cancer (LARC) has also changed thanks to recent advances in positron emission tomography-computed tomography (PET-CT) and its increasing availability. Several studies showed that FDG PET-CT accurately changed the stage with a subsequent alteration in therapy in almost one-third of patients. Moreover, FDG PET-CT capable to predict the effect of preoperative chemoradiation as well as survival.