The influence of post-diuretic late phase imaging in visual and quantitative evaluation of urothelial tumors by F-18 fluorodeoxyglucose positron emission tomography/computed tomography.

Late phase imaging after diuretic administration should be performed in case of non-visualization of primary tumor in the bladder region. The late phase post-diuretic imaging revealed significant improvement in the visual and quantitative diagnostic performance of the FDG PET/CT and has high diagnostic accuracy for the staging of urothelial tumors.