title: Prolonged half-life following diuretic radionuclide urography as evidence of ureteral obstruction.
abstract: Diuretic radionuclide urography is an accurate technique for detecting obstruction as a possible cause of nephroureteral dilatation. This technique was used to evaluate radioisotope retention in the renal pelvis noted on the bone scan of a patient with prostate carcinoma. There was some washout of the pelvic radioactivity following intravenous furosemide, but the half-life was markedly prolonged, allowing the correct diagnosis of partial obstruction to be made.
mesh_terms: D000368:Aged; D005665:Furosemide; D006207:Half-Life; D006801:Humans; D007682:Kidney Pelvis / Q000000981:diagnostic imaging*; D008297:Male; D011471:Prostatic Neoplasms / Q000150:complications; D011877:Radionuclide Imaging; D013669:Technetium Tc 99m Medronate / Q000031:analogs & derivatives*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology; D001749:Urinary Bladder Neoplasms / Q000150:complications
chemical_list: C024226:technetium Tc 99m hydroxymethylene diphosphonate; D005665:Furosemide; D013669:Technetium Tc 99m Medronate