title: [The diuresis urogram in patients with a bladder replacement].
abstract: OBJECTIVE
  To differentiate between urodynamically relevant obstruction and functionally unimportant dilation of the upper urinary tract in patients with neobladder using a modified furosemide urogram.
  
  
  METHODS
  An excretory urogram with furosemide loading was carried out in 19 patients with neobladder and sonographically and urographically confirmed dilation of the upper urinary tract. Once strong contrasting of the renal pelves and calyces has been achieved, 20 mg of furosemide were applied and late radiographs were obtained at 15 min and 30 min, respectively. An obstruction was defined as increasing dilation of the renal pelves and calices during forced diuresis and lack of washout effect of the contrast medium.
  
  
  RESULTS
  In 32 cases, the renoureteral unit (RUU) was dilated on ultrasound. Of these, 25 RUU's showed good emptiness of contrast medium upon stimulation of diuresis, six RUU's returned a borderline findings, while one RUU was found to exhibit a decompensated anastomotic stenosis, which was dilated. Two further patients with borderline findings were later treated surgically due to their pain symptoms. No patient required further preoperative diagnostic procedures.
  
  
  CONCLUSIONS
  The modified furosemide urogram represents a cost-effective diagnostic orientation strategy in patients with neobladder and dilated renal pelves and calyces and is both well-tolerated by patients and meets with broad acceptance from the urologic staff.
authors.affiliation: Abteilung Radiologie I, Universität Ulm.
authors.forename: E M
authors.initials: EM
authors.lastname: Merkle
authors.forename: A J
authors.initials: AJ
authors.lastname: Aschoff
authors.forename: R
authors.initials: R
authors.lastname: Bachor
authors.forename: J
authors.initials: J
authors.lastname: Vogel
authors.forename: J
authors.initials: J
authors.lastname: Merk
authors.forename: H J
authors.initials: HJ
authors.lastname: Brambs
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D004231:Diuresis; D004232:Diuretics; D005260:Female; D005500:Follow-Up Studies; D005665:Furosemide; D006801:Humans; D007082:Ileum / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging* / Q000503:physiopathology; D012007:Rectum / Q000601:surgery; D014463:Ultrasonography; D001743:Urinary Bladder / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014547:Urinary Diversion; D014563:Urodynamics; D014567:Urography
chemical_list: D004232:Diuretics; D005665:Furosemide