title: Intrarenal reflux: anatomical, dynamic and radiological studies-part I.
abstract: The radiographic appearances and dynamics of intrarenal reflux have been defined in an experimental study of the pig's kidney. Intrarenal reflux occurs only with "refluxing" papillae and is an "all-or-none" phenomenon when the threshold figure of 10-15 mm Hg is exceeded. Increasing intrapelvic pressure leads to increasing density of the radiographic shadow but new areas of intrarenal reflux are not produced.
mesh_terms: D000818:Animals; D007668:Kidney / Q000000981:diagnostic imaging / Q000503:physiopathology*; D007684:Kidney Tubules / Q000000981:diagnostic imaging / Q000503:physiopathology; D011704:Pyelonephritis / Q000503:physiopathology; D011859:Radiography; D013552:Swine; D014718:Vesico-Ureteral Reflux / Q000503:physiopathology*