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[The value of quantitative functional scintigraphy of the kidneys in urology (author's transl)].

The results (in 221 cases) of quantitative functional scintigraphy (Q.F.S) using 125I-hipuran (sequential scintigraphy ROI-nephrography, unilateral clearance studies) were compared with the radiological, laboratory, surgical, histological and clinical findings. Clearance measurements were superior to estimates of blood urea and/or creatinin levels. The width of parenchyma in the urogram or the secretion value did not provide sufficiently valuable evidence regarding renal function. Agreement between the above findings and those on Q.F.S. was observed in 85.7%. In the absence of agreement, Q.F.S. proved the more sensitive method and was more frequently correct. Additional information was obtained in 78.8% and treatment influenced in 18 to 65%, depending on the underlying disease. Q.F.S, had a determining role in the choice of treatment (nephrectomy, preservation of the kidney, conservative treatment) in relation to the estimate of function of the other kidney and is of considerable value to the urologist in pre-operative diagnosis.