title: MR-guided direct arthrography of the glenohumeral joint.
abstract: OBJECTIVE
  To evaluate the feasibility of magnetic resonance (MR)-guided direct arthrography of the glenohumeral joint with a 1.5 T MR system, performing the entire procedure in a single MR examination.
  
  
  METHODS
  MR-guided direct arthrography was performed on 11 patients. MR imaging guidance and interactive MR fluoroscopy, with in-room control and display system, were used for needle placement and contrast medium injection. The outcome measures were success or failure of joint puncture, the time taken for introduction of contrast medium, and the diagnostic quality of the subsequent MR arthrography images.
  
  
  RESULTS
  Contrast medium was successfully instilled into the joint and diagnostic quality MR arthrography images were obtained in all cases. The median time from initial placement of the skin marker to introduction of the contrast medium was 17 min (range 11-29 min). There were no immediate post-procedure complications.
  
  
  CONCLUSIONS
  Accurate needle placement is feasible in a single MR examination on a commercial 1.5 T closed-bore MR system, using an in-room control and display system together with interactive fluoroscopic imaging, and this was used to provide direct MR arthrography in this study.
authors.affiliation: Department of Radiology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK. esoh@doctors.org.uk
authors.forename: E
authors.initials: E
authors.lastname: Soh
authors.forename: P W P
authors.initials: PW
authors.lastname: Bearcroft
authors.forename: M J
authors.initials: MJ
authors.lastname: Graves
authors.forename: R
authors.initials: R
authors.lastname: Black
authors.forename: D J
authors.initials: DJ
authors.lastname: Lomas
mesh_terms: D000328:Adult; D001175:Arthrography / Q000379:methods* / Q000639:trends; D002983:Clinical Competence / Q000592:standards; D005240:Feasibility Studies; D005260:Female; D005471:Fluoroscopy / Q000379:methods* / Q000639:trends; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation; D007270:Injections, Intra-Articular; D053783:Magnetic Resonance Imaging, Interventional; D008297:Male; D011677:Punctures / Q000379:methods* / Q000592:standards; D012785:Shoulder Joint / Q000000981:diagnostic imaging* / Q000473:pathology; D055815:Young Adult