title: Renal perfusion-excretion determination as "split-function study" in diagnosis of segmental renal artery stenosis in a child.
abstract: A case of renal artery stenosis (RAS) is described in a seven-year-old boy. The preoperative renal perfusion-excretion determination (RPED) was diagnostic of renal artery stenosis. In addition, after corrective surgery the postoperative RPED showed relatively normal values with a decrease in tubular transport time (TTT), an anticipated finding in patients with corrected RAS. This patient also represents an interesting example of intrarenal collateral vessel formation in an ischemic kidney.
mesh_terms: D002648:Child; D003097:Collateral Circulation; D006801:Humans; D007457:Iodine Radioisotopes; D007465:Iodohippuric Acid; D007668:Kidney / Q000098:blood supply; D008297:Male; D010477:Perfusion; D011859:Radiography; D011866:Radioisotope Renography / Q000379:methods; D012039:Regional Blood Flow; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging*
chemical_list: D007457:Iodine Radioisotopes; D007465:Iodohippuric Acid