title: [MR urography in the diagnosis of upper urinary tract obstruction].
abstract: OBJECTIVE
  To evaluate the role of magnetic resonance urography (MRU) in the diagnosis of upper urinary tract obstruction.
  
  
  METHODS
  MRU was performed for 35 patients suspicious of upper urinary tract obstruction.
  
  
  RESULTS
  MRU provided high resolution images of the urinary tract. The site of upper urinary tract obstruction and hydronephrosis could be clearly shown.
  
  
  CONCLUSIONS
  MRU, a nontraumatic technique, needs no iodinated contrast medium. It might be widely adopted in the diagnosis of upper urinary diseases.
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai Second Medical University, Shanghai 200025.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhu
authors.forename: Y
authors.initials: Y
authors.lastname: Wu
authors.forename: Z
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D014517:Ureteral Obstruction / Q000175:diagnosis*; D014567:Urography