title: MRI of spinal hardware: comparison of conventional T1-weighted sequence with a new metal artifact reduction sequence.
abstract: OBJECTIVE
  This study was designed to compare diagnostic quality of MR images of patients with spinal hardware acquired using a conventional T1-weighted spin-echo sequence and a new metal artifact reduction sequence (MARS).
  
  
  CONCLUSIONS
  The new MARS sequence effectively reduces the degree of tissue-obscuring artifact produced by spinal fixation hardware and subjectively improves image quality compared with the conventional T1-weighted spin-echo sequence.
authors.affiliation: Department of Radiology, Vancouver General Hospital, 899 West 12th Avenue, Vancouver, BC, Canada V5Z 1M9.
authors.forename: S D
authors.initials: SD
authors.lastname: Chang
authors.forename: M J
authors.initials: MJ
authors.lastname: Lee
authors.forename: P L
authors.initials: PL
authors.lastname: Munk
authors.forename: D L
authors.initials: DL
authors.lastname: Janzen
authors.forename: A
authors.initials: A
authors.lastname: MacKay
authors.forename: Q S
authors.initials: QS
authors.lastname: Xiang
mesh_terms: D000328:Adult; D000368:Aged; D016477:Artifacts; D006801:Humans; D016268:Internal Fixators; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008670:Metals; D008875:Middle Aged; D012189:Retrospective Studies; D013131:Spine / Q000473:pathology* / Q000601:surgery*
chemical_list: D008670:Metals