title: [Renoscintigram in urinary stones].
abstract: Seventy six patients who suffered from urinary stones on either side of the upper urinary tract were reviewed. The 99m-Tc DTPA renoscintigram was analyzed to examine whether stasis presented on the contralateral side of the urinary stone retrospectively. Though excretory urogram showed neither apparent stasis nor other abnormalities on the contralateral sides, 55 of these 76 cases showed stasis to some degree in the renoscintigram. Thirty five of these 55 cases also showed elongation of T1/2 in the ROI curve. Since 72.4% showed urinary stasis on the contralateral side of the urinary stone, we suggest the possibility that stasis can well be a cause of stone formation. In addition we warn of the possibility of future stone formation on the now healthy contralateral side.
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D004369:Pentetic Acid; D011866:Radioisotope Renography; D013667:Technetium; D016284:Technetium Tc 99m Pentetate; D014545:Urinary Calculi / Q000175:diagnosis*
chemical_list: D013667:Technetium; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate