title: Renal parenchymal function evaluated by scintillation camera renography before and after pyeloplasty for hydronephrosis.
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.
authors.affiliation: Department of Urology, University of Lund, Sweden.
authors.forename: G
authors.initials: G
authors.lastname: Ahlgren
authors.forename: W
authors.initials: W
authors.lastname: Månsson
authors.forename: T
authors.initials: T
authors.lastname: White
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D015902:Gamma Cameras; D005919:Glomerular Filtration Rate / Q000502:physiology; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging* / Q000601:surgery; D007682:Kidney Pelvis / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011866:Radioisotope Renography; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging* / Q000601:surgery; D014563:Urodynamics / Q000502:physiology