title: Contribution of the foetal uro-MRI in the prenatal diagnosis of uronephropathies.
abstract: OBJECTIVE
  To study the complementary diagnostic value and role in the perinatal management of foetal MRI in the prenatal diagnosis of abnormalities of the urinary tract.
  
  
  METHODS
  Retrospective monocentric study from November 2002 to June 2011 of foetuses benefiting from an MRI after ultrasound diagnosis of uronephropathy abnormalities. Ultrasound and MRI data were compared with postnatal radiological and/or surgical data or with the foetopathology. The MRI analysis focused on the diagnostic concordance with the ultrasound, the complementary diagnostic contribution and/or a change in perinatal care.
  
  
  RESULTS
  Of the 154 MRI examined, a follow-up was obtained for 108 cases. The indications for MRI were classified into six groups: suspected renal agenesis (n = 20, 18.5%), posterior urethral valve (n = 20, 18.5%), reflux or megaureter (n = 14, 13%), uretropelvic junction syndrome (n = 24, 22.5%), enlarged kidneys (n = 7, 6.5%) and others (n = 23, 21%). The information supplied by ultrasound was confirmed by MRI in 72 patients (67%). MRI provided additional data for 36 patients (33%) and changed the perinatal care for 16 patients (15%).
  
  
  CONCLUSIONS
  Foetal uro-MRI is a useful complementary tool in the prenatal diagnosis of some uropathy abnormalities.
authors.affiliation: Service d'imagerie pédiatrique et prénatale, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France. Electronic address: hrmnpc@yahoo.fr.
authors.forename: H
authors.initials: H
authors.lastname: Pico
authors.affiliation: Service d'imagerie pédiatrique et prénatale, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: A
authors.initials: A
authors.lastname: Dabadie
authors.affiliation: Service d'imagerie pédiatrique et prénatale, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: B
authors.initials: B
authors.lastname: Bourliere-Najean
authors.affiliation: Département de génétique médicale, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: N
authors.initials: N
authors.lastname: Philip
authors.affiliation: Centre de diagnostic prénatal, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: M
authors.initials: M
authors.lastname: Capelle
authors.affiliation: Service d'imagerie pédiatrique et prénatale, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: A
authors.initials: A
authors.lastname: Aschero
authors.affiliation: Service de gynécologie obstétrique, hôpital Saint-Joseph, 26, boulevard de Louvain, 13285 Marseille cedex 08, France.
authors.forename: E
authors.initials: E
authors.lastname: Quarello
authors.affiliation: Service de chirurgie infantile, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: J-M
authors.initials: JM
authors.lastname: Guys
authors.affiliation: Service de chirurgie infantile, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: G
authors.initials: G
authors.lastname: Hery
authors.affiliation: Service d'imagerie pédiatrique et prénatale, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: P
authors.initials: P
authors.lastname: Petit
authors.affiliation: Service d'imagerie pédiatrique et prénatale, hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: G
authors.initials: G
authors.lastname: Gorincour
mesh_terms: D005260:Female; D005333:Fetus / Q000002:abnormalities*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011296:Prenatal Diagnosis / Q000379:methods*; D012189:Retrospective Studies; D014551:Urinary Tract / Q000002:abnormalities*
keywords: Magnetic resonance imaging; Pregnant; Prenatal ultrasonography; Urogenital abnormalities