title: Artifacts in dual-energy CT gout protocol: a review of 50 suspected cases with an artifact identification guide.
abstract: OBJECTIVE
  The objective of our study was to discover the types and incidence of artifacts in dual-energy CT (DECT) using datasets of 50 consecutive patients who underwent a four-limb DECT protocol for the evaluation of suspected gout. Identification of artifacts and techniques for artifact reduction are discussed.
  
  
  CONCLUSIONS
  Artifacts commonly occur in DECT performed for gout assessment but are usually readily recognizable. For 90% of the patients in our study who underwent imaging for suspected gout, DECT showed some type of artifact, with nail bed and skin artifacts being the most common.
authors.affiliation: 1 Department of Radiology, Vancouver General Hospital and University of British Columbia, 899 W 12th Ave, Vancouver, BC V5Z 1M9, Canada.
authors.forename: Paul Ian
authors.initials: PI
authors.lastname: Mallinson
authors.forename: Tyler
authors.initials: T
authors.lastname: Coupal
authors.forename: Clemens
authors.initials: C
authors.lastname: Reisinger
authors.forename: Hong
authors.initials: H
authors.lastname: Chou
authors.forename: Peter Loren
authors.initials: PL
authors.lastname: Munk
authors.forename: Savvas
authors.initials: S
authors.lastname: Nicolaou
authors.forename: Hugue
authors.initials: H
authors.lastname: Ouellette
mesh_terms: D000328:Adult; D000368:Aged; D000465:Algorithms; D016477:Artifacts; D005260:Female; D006073:Gout / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011857:Radiographic Image Interpretation, Computer-Assisted; D014057:Tomography, X-Ray Computed / Q000379:methods*
keywords: artifact; artifact reduction; dual-energy CT; gout; urate