title: [Indirect MR arthrography of the shoulder. An alternative to direct MR arthrography?].
abstract: BACKGROUND
  The purpose of this study was to evaluate the diagnostic power of indirect MR arthrography (I-MRA) particularly in rotator cuff tears.
  
  
  METHODS
  Sonography, conventional MRI and I-MRA were compared with arthroscopy in 25 patients. Additionally literature about experience with the method in other shoulder disease was searched.
  
  
  RESULTS
  Sensitivity and specificity in the detection of rotator cuff tears were 0.6 and 0.7 respectively using sonography, 0.66 and 1 with conventional MRI and 1 and 0.86 for I-MRA. I-MRA was especially useful in diagnosing partial tears. In other studies I-MRA showed good results in the evaluation of glenoid labral tears, with a sensitivity of 91% and a specificity of 92%.
  
  
  CONCLUSIONS
  I-MRA can be successfully used to diagnose rotator cuff and labral tears.
authors.affiliation: Radiologische Universitätsklinik, Bonn.
authors.forename: M
authors.initials: M
authors.lastname: Vahlensieck
authors.forename: T
authors.initials: T
authors.lastname: Sommer
mesh_terms: D000328:Adult; D001175:Arthrography; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D016059:Range of Motion, Articular / Q000502:physiology; D017006:Rotator Cuff / Q000473:pathology; D000070636:Rotator Cuff Injuries; D012421:Rupture; D012680:Sensitivity and Specificity; D019534:Shoulder Impingement Syndrome / Q000175:diagnosis* / Q000209:etiology; D014463:Ultrasonography
vernacular_title: Indirekte MR-Arthrographie der Schulter. Alternative zur direkten MR-Arthrographie?