“ With a three-phase CT urologic protocol, significant dose reduction in the unenhanced and excretory phases can be achieved when these phases are combined with a normal-dose corticomedullary phase.” How Much Dose Can Be Saved in Three Phase CT Urography? A Combination of Normal-Dose Corticomedullary Phase With Low Dose Unenhanced and Excretory Phases Dahlman P et al. AJR 2012; 199:852-860
“ It is possible to reduce the total radiation dose for CT urography by 42% by selectively reducing the dose in the unenhanced and excretory phases and systematically evaluating the images obtained in these phases alongside those obtained in the normal dose corticomedullary phase.” How Much Dose Can Be Saved in Three Phase CT Urography? A Combination of Normal-Dose Corticomedullary Phase With Low Dose Unenhanced and Excretory Phases Dahlman P et al. AJR 2012; 199:852-860
