title: [MRI of the knee joint: first results of a comparison of 0,2-T specialized system and 1,5-T high field strength magnet].
abstract: OBJECTIVE
  Diagnostic accuracy and image quality of a specialised system for MR examinations of peripheral joints were evaluated.
  
  
  METHODS
  20 patients with acute or chronic injuries of the knee were examined using a low-field MR system (0.2 T). For comparison, all patients were also studied with a 1.5 T high field strength magnet and all diagnoses were correlated with arthroscopic findings.
  
  
  RESULTS
  We found compatible diagnostic accuracies (cruciate ligaments 90%, menisci 75-90%) and good image quality ratings for the low field system ("good" and "excellent" image quality in 83% of cases).
  
  
  CONCLUSIONS
  The low-field MR-system offers low-cost MR examinations of peripheral joints with good image quality and reliable diagnostic information.
authors.affiliation: Institut für Röntgendiagnostik, Technischen Universität München.
authors.forename: B
authors.initials: B
authors.lastname: Kersting-Sommerhoff
authors.forename: P
authors.initials: P
authors.lastname: Gerhardt
authors.forename: W
authors.initials: W
authors.lastname: Golder
authors.forename: N
authors.initials: N
authors.lastname: Hof
authors.forename: K A
authors.initials: KA
authors.lastname: Riel
authors.forename: H
authors.initials: H
authors.lastname: Helmberger
authors.forename: M
authors.initials: M
authors.lastname: Lenz
authors.forename: K
authors.initials: K
authors.lastname: Lehner
mesh_terms: D000328:Adult; D000368:Aged; D003288:Contusions / Q000175:diagnosis; D005069:Evaluation Studies as Topic; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis; D007718:Knee Injuries / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D012680:Sensitivity and Specificity
vernacular_title: MRT des Kniegelenks: Erste Ergebnisse eines Vergleichs von 0,2-T-Spezialsystem mit 1,5-T-Hochfeldmagnet.