title: Dual-Energy CT for the Musculoskeletal System.
abstract: The principal advantages of dual-energy computed tomography (CT) over conventional CT in the musculoskeletal setting relate to the additional information provided regarding tissue composition, artifact reduction, and image optimization. This article discusses the manifestations of these in clinical practice-urate and bone marrow edema detection, metal artifact reduction, and tendon analysis, with potential in arthrography, bone densitometry, and metastases surveillance. The basic principles of dual-energy CT physics and scanner design will also be discussed.©RSNA, 2016.
authors.affiliation: From the Department of Radiology, Vancouver General Hospital/University of British Columbia, Jim Pattison Pavilion, 899 W 12th Ave, Vancouver, BC, Canada V5Z 1M9.
authors.forename: Paul I
authors.initials: PI
authors.lastname: Mallinson
authors.affiliation: From the Department of Radiology, Vancouver General Hospital/University of British Columbia, Jim Pattison Pavilion, 899 W 12th Ave, Vancouver, BC, Canada V5Z 1M9.
authors.forename: Tyler M
authors.initials: TM
authors.lastname: Coupal
authors.affiliation: From the Department of Radiology, Vancouver General Hospital/University of British Columbia, Jim Pattison Pavilion, 899 W 12th Ave, Vancouver, BC, Canada V5Z 1M9.
authors.forename: Patrick D
authors.initials: PD
authors.lastname: McLaughlin
authors.affiliation: From the Department of Radiology, Vancouver General Hospital/University of British Columbia, Jim Pattison Pavilion, 899 W 12th Ave, Vancouver, BC, Canada V5Z 1M9.
authors.forename: Savvas
authors.initials: S
authors.lastname: Nicolaou
authors.affiliation: From the Department of Radiology, Vancouver General Hospital/University of British Columbia, Jim Pattison Pavilion, 899 W 12th Ave, Vancouver, BC, Canada V5Z 1M9.
authors.forename: Peter L
authors.initials: PL
authors.lastname: Munk
authors.affiliation: From the Department of Radiology, Vancouver General Hospital/University of British Columbia, Jim Pattison Pavilion, 899 W 12th Ave, Vancouver, BC, Canada V5Z 1M9.
authors.forename: Hugue A
authors.initials: HA
authors.lastname: Ouellette
mesh_terms: D000328:Adult; D000368:Aged; D001175:Arthrography / Q000379:methods; D016477:Artifacts; D015519:Bone Density / Q000502:physiology; D001855:Bone Marrow Diseases / Q000000981:diagnostic imaging; D003094:Collagen / Q000032:analysis; D004487:Edema / Q000000981:diagnostic imaging; D005260:Female; D006073:Gout / Q000000981:diagnostic imaging; D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging; D008022:Ligaments / Q000000981:diagnostic imaging; D008297:Male; D008670:Metals; D008875:Middle Aged; D009140:Musculoskeletal Diseases / Q000000981:diagnostic imaging*; D009141:Musculoskeletal System / Q000000981:diagnostic imaging*; D015900:Radiography, Dual-Energy Scanned Projection / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014527:Uric Acid / Q000032:analysis
chemical_list: D008670:Metals; D014527:Uric Acid; D003094:Collagen