title: [Use of magnetic resonance in preoperative evaluation of urinary tract obstruction in children--initial results].
abstract: OBJECTIVE
  To evaluate hitherto assembled experience with the application of magnetic resonance in the preoperative diagnosis of patients with obstruction of the upper urinary pathways.
  
  
  METHODS
  Urography using magnetic resonance was performed in 22 children aged 1 month to 17 years with a sonographically assessed dilatation of the upper urinary pathways. The examinations were compared with concurrent excretory urography and formed part of a complex of preoperative examinations.
  
  
  RESULTS
  In seven patients magnetic urography was evaluated as more accurate than excretory urography, in five instances excretory urography was more accurate, in the remaining children the results were comparable.
  
  
  CONCLUSIONS
  The advantage of urography implemented by magnetic resonance is the short examination time, its non-invasive character, absence of ionizing radiation, impossible allergenization, and the examination does not depend on the functional fitness of the kidney. The results of examination are comparable with X-ray excretory urography.
authors.affiliation: Klinika dĕtské chirurgie, ortopedie a traumatologie FN Brno.
authors.forename: P
authors.initials: P
authors.lastname: Zerhau
authors.forename: J
authors.initials: J
authors.lastname: Kubátová
authors.forename: D
authors.initials: D
authors.lastname: Horák
authors.forename: J
authors.initials: J
authors.lastname: Skotáková
authors.forename: V
authors.initials: V
authors.lastname: Mach
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D006869:Hydronephrosis / Q000175:diagnosis*; D007223:Infant; D008279:Magnetic Resonance Imaging; D014517:Ureteral Obstruction / Q000175:diagnosis*; D014551:Urinary Tract / Q000473:pathology*
vernacular_title: Vyuzití magnetické rezonance pri predoperacním vysetrení obstrukcí mocových cest u dĕtí--první výsledky.