Abstract:ObjectiveTo discuss the value of conjoint application of the three methods.Methods(1)Renal dynamic imaging plus GFR assay: the facilities were Philips Fort SPECT and 99Mo-99Tcm generator provided by Beijing Atomic Energy Research Institute, and the matching reagent cases DTPA(pentetate acid and stannous chloride for injection)were supplied by Jiangyuan pharmaceutical factory of Jiangsu Province Atomic Medicine Research Institute.(2)The CT was Philips 16-row spirals,with each layer 5 mm thick and each screw distance 5mm.(3)Digital gastrointestinal X-ray machine was Philips Essenta RC,and the contrast medium was ioversol injection(50 ml:33.9 g). (4)The groups were divided as renal dynamic imaging plus GFR assay combining with CT scan,renal dynamic imaging plus GFR assay combining with intravenous pyelography,and  the group of mono or both sides kidney and ureter no display in intravenous pyelography.ResultsRenal dynamic imaging plus GFR assay and CT plus intravenous pyelography obtained high congruous rate.CT plus intravenous pyelography offered particular anatomic informations for clinic,while renal dynamic imaging plus GFR assay provided particular renal functional quantitative informations of each kidney,thus the function evaluations excelled pure intravenous pyelography.Conclusions The combination of renal dynamic imaging plus GFR assay and CT scan was the best of all choices in evaluating kidney and ureter anatomy and function.