title: Diuretic radionuclide localization of upper urinary tract obstruction.
abstract: In 59 children with proved upper urinary tract obstruction diuretic radionuclide ureteral scans provided an accurate assessment of ureteral dilatation sufficient to distinguish ureteropelvic from ureterovesical obstruction. As a result, this test may be used instead of more invasive studies, such as retrograde or antegrade pyelography, to determine the site of obstruction in many cases of hydronephrosis.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D005665:Furosemide; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging* / Q000209:etiology; D007223:Infant; D007682:Kidney Pelvis / Q000000981:diagnostic imaging* / Q000601:surgery; D004369:Pentetic Acid; D011877:Radionuclide Imaging; D013667:Technetium; D016284:Technetium Tc 99m Pentetate; D014513:Ureter / Q000000981:diagnostic imaging; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging* / Q000601:surgery; D001743:Urinary Bladder / Q000000981:diagnostic imaging; D014718:Vesico-Ureteral Reflux / Q000000981:diagnostic imaging / Q000601:surgery
chemical_list: D013667:Technetium; D004369:Pentetic Acid; D005665:Furosemide; D016284:Technetium Tc 99m Pentetate