Quantitative assessment of individual renal function. A comparison between creatinine excretion and a radionuclide method.

Individual renal function was evaluated in 21 patients. Two methods were used in each case, namely gamma camera renography and measurement of creatinine excretion in urine collected via a nephrostomy. The scintigraphic technique utilized measurement of renal parenchymal radionuclide uptake in an early phase. Good agreement was found between the results from both methods in most patients. Gamma camera renography was found to be clinically useful for assessing the function of individual kidneys.