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  • Title: Renal parenchymal function evaluated by scintillation camera renography before and after pyeloplasty for hydronephrosis.
    Author: Ahlgren G, Månsson W, White T.
    Journal: Scand J Urol Nephrol; 1992; 26(2):161-8. PubMed ID: 1626206.
    Abstract:
    Scintillation camera renography with Tc-DTPA was performed before and after pyeloplasty on 16 kidneys with urographic signs of pelviureteric obstruction causing hydronephrosis. Regional parenchymal renograms were generated, and the passage of Tc-DTPA through the parenchyma was measured and correlated to the change in separate glomerular filtration rate. Preoperative parenchymal passage of DTPA was significantly slower (p = 0.02) in kidneys with improved glomerular filtration rate after pyeloplasty than in those without such improvement. Postoperative passage of DTPA in parenchyma was almost identical with that in a reference series. This method seems to be clinically useful for evaluating cases of hydronephrosis and for predicting the outcome of pyeloplasty.
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