title: Dynamic contrast-enhanced MR imaging and MR-guided bone biopsy on a 0.23 T open imager.
abstract: OBJECTIVE
  To assess the feasibility of MR (magnetic resonance)-guided bone biopsies.
  
  
  METHODS
  Thirty-six consecutive patients with known or suspected benign or malignant bone lesions underwent comprehensive MR imaging. A dynamic contrast-enhanced sequence followed by stationary T1-weighted sequences were obtained and MR-guided bone biopsy of the tumor at the site with fastest enhancement was performed using an open 0.23 T MR imager.
  
  
  RESULTS
  All MR-guided bone biopsies samples were estimated to be sufficient by the pathologists. The biopsy specimens were diagnostic in 34 of 36 cases.
  
  
  CONCLUSIONS
  MR-guided bone biopsies combined with dynamic contrast-enhanced imaging are feasible and safe for the diagnostic investigation of equivocal bone lesions.
authors.affiliation: Department of Diagnostic Radiology, University Hospital of Turku, Kiinamyllynkatu 4-8, FIN-20520 Turku, Finland. riitta.parkkola@tyks.fi
authors.forename: R K
authors.initials: RK
authors.lastname: Parkkola
authors.forename: K T
authors.initials: KT
authors.lastname: Mattila
authors.forename: J T
authors.initials: JT
authors.lastname: Heikkilä
authors.forename: T O
authors.initials: TO
authors.lastname: Ekfors
authors.forename: M A
authors.initials: MA
authors.lastname: Kallajoki
authors.forename: M E
authors.initials: ME
authors.lastname: Komu
authors.forename: T J
authors.initials: TJ
authors.lastname: Vaara
authors.forename: H T
authors.initials: HT
authors.lastname: Aro
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D001859:Bone Neoplasms / Q000473:pathology*; D001842:Bone and Bones / Q000473:pathology*; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D005500:Follow-Up Studies; D019786:Gadolinium DTPA / Q000008:administration & dosage; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA