a slight trendgold
made a retrospective investigation to the feasibility of using MRI and 18 F-FDG-PET/CT in N staging and found that no significant difference was found between MRI and 18 F-FDG-PET/CT for the BLCA N staging but a slight trend of advantage of 18 F-FDG-PET/CT compared with MRI alone, which also indicated the value of the addition of PET information for the enhanced efficacy of N staging in BLCA.