[The assessment of kidney function based on renal scintigraphy data with 99mTc-DMSA]

Renoscintigraphy with 99mTc-DMCA with regard to a percentage of an RP uptake by the kidney was performed in 70 patients with uronephrological lesions before operation. A close relationship was established between a percentage of a 99mTc-DMCA uptake by the kidney on the 3rd hour after RP administration and values of the effective renal plasma flow, calculated on the basis of the results of renoscintigraphy with 131I-hippuran. Comparison of the 99mTc-DMCA uptake percentage values on the 3rd and 24th hours in patients with marked lesions of renal tubular functions has shown a high degree of correlation, permitting the recommendation of quantitative renoscintigraphy on the 3rd hour. Analysis of the specific percentage of the RP uptake, calculated for 1 cm2 of the visualized renal parenchyma, makes it possible to increase on the average by 29% the detection of renal function in uronephrological patients.