title: Comparison of magnetic resonance imaging and transvaginal ultrasonography in diagnosing bladder endometriosis.
abstract: OBJECTIVE
  To take recent progress in magnetic resonance imaging (MRI) into account to determine its accuracy compared with that of transvaginal ultrasonography (TVUS) in diagnosing bladder endometriosis.
  
  
  METHODS
  Retrospective analysis (Canadian Task Force classification II-2).
  
  
  METHODS
  University-affiliated hospital.
  
  
  METHODS
  Twelve women with histologically proved bladder endometriosis.
  
  
  METHODS
  Magnetic resonance imaging with body and endocavitary coils and TVUS.
  
  
  RESULTS
  Although TVUS was normal in four patients, MRI enabled endometriotic lesions to be detected in all patients. Magnetic resonance imaging with endocavitary coil established the existence of deep infiltration in three patients when muscularis involvement was not visible with the body coil. In seven women MRI determined how far deep posterior endometriotic lesions extended, whereas with TVUS this was impossible to see. Conclusion. MRI had advantages over TVUS in diagnosing small lesions of associated posterior deep endometriotic lesions. The endocavitary coil gave better results than the phased-array coil for diagnosing deep infiltration. These results are important in that they help guide surgical management.
authors.affiliation: Assistance Publique, Hôpitaux de Paris, CHU Necker, France.
authors.forename: C
authors.initials: C
authors.lastname: Balleyguier
authors.forename: C
authors.initials: C
authors.lastname: Chapron
authors.forename: J B
authors.initials: JB
authors.lastname: Dubuisson
authors.forename: K
authors.initials: K
authors.lastname: Kinkel
authors.forename: A
authors.initials: A
authors.lastname: Fauconnier
authors.forename: M
authors.initials: M
authors.lastname: Vieira
authors.forename: O
authors.initials: O
authors.lastname: Hélénon
authors.forename: Y
authors.initials: Y
authors.lastname: Menu
mesh_terms: D000328:Adult; D004715:Endometriosis / Q000175:diagnosis*; D019160:Endosonography; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D012189:Retrospective Studies; D001743:Urinary Bladder / Q000000981:diagnostic imaging*; D001745:Urinary Bladder Diseases / Q000175:diagnosis*