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  • Title: Measurement of separate kidney clearance by means of 99mTc-DTPA complex and a scintillation camera.
    Author: Piepsz A, Dobbeleir A, Erbsmann F.
    Journal: Eur J Nucl Med; 1977 Sep 30; 2(3):173-7. PubMed ID: 913431.
    Abstract:
    A new radioisotopic method of determining the separate glomerular clearance of the kidneys is described. After injection of 99mTc-DTPA, the data from a scintillation camera are recorded by computer. The renal curves are corrected for extrarenal activity and the plasma curve is obtained from a precordial curve. At each instant the slope of the renal curve divided by the corresponding plasma concentration gives the separate clearance value, in the period extending from 80 to 180 s after injection of the tracer. The error and correction factors introduced are discussed. Normal values are established on 25 patients and correspond to inulin clearance values. Left kidney: 60 ml/min (SD=13). Right kidney: 57 ml/min (SD=12). The method is simple for the patient, takes only 20 min, is not dangerous, is particularly applicable to young children and can be repeated frequently in the same patient.
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