A simplified method of renal scintigraphy carried out with ¹³¹1-Hippuran and ^99mTc-DTPA diethylenetriaminopentacetate is described in man. Results were expressed as tubular clearance (with Hippuran) and glomerular clearance (with DTPA) per kidney, and compared to PAH and inulin clearances measured in the same patients. There was a close positive correlation between clearances calculated by means of renal scintigraphy and those measured by standard procedure for studying renal function. This study showed that a simple calculation allowed to express scintigraphical findings in terms of clearance.

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