title: Peering through the glare: using dual-energy CT to overcome the problem of metal artefacts in bone radiology.
abstract: OBJECTIVE
  Imaging of patients with large metal implants remains one of the most difficult endeavours for radiologists. This article reviews the theory of dual-energy CT (DECT) and its ability to reduce metal artefact, thus enhancing the diagnostic value of musculoskeletal imaging. The strengths, weaknesses, and alternative applications of DECT, as well as areas requiring further research, will also be reviewed.
  
  
  CONCLUSIONS
  Currently, DECT stands as the frontier for metal artefact reduction in musculoskeletal imaging. DECT requires no additional radiation and provides significantly enhanced image acquisition. When considered along with its other capabilities, DECT is a promising new tool for musculoskeletal and trauma radiologists.
authors.affiliation: Michael G. DeGroote School of Medicine, McMaster University, 1280 Main St W, Hamilton, ON, Canada, L8S 4 K1.
authors.forename: Tyler M
authors.initials: TM
authors.lastname: Coupal
authors.forename: Paul I
authors.initials: PI
authors.lastname: Mallinson
authors.forename: Patrick
authors.initials: P
authors.lastname: McLaughlin
authors.forename: Savvas
authors.initials: S
authors.lastname: Nicolaou
authors.forename: Peter L
authors.initials: PL
authors.lastname: Munk
authors.forename: Hugue
authors.initials: H
authors.lastname: Ouellette
mesh_terms: D016477:Artifacts; D001842:Bone and Bones / Q000000981:diagnostic imaging* / Q000601:surgery*; D006801:Humans; D008670:Metals; D019736:Prostheses and Implants; D011856:Radiographic Image Enhancement / Q000379:methods*; D015900:Radiography, Dual-Energy Scanned Projection / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D008670:Metals