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Psoriatic arthritis imaging: a review of scoring methods
  1. D van der Heijde1,
  2. J Sharp2,
  3. S Wassenberg3,
  4. D D Gladman4
  1. 1Department of Rheumatology, University Hospital Maastricht, and Caphri Research Institute, University Maastricht, Maastricht, the Netherlands
  2. 2University of Washington School of Medicine, Seattle, WA, USA
  3. 3Fachkrankenhaus Ratingen, Ratingen, Germany
  4. 4University of Toronto; Toronto Western Research Institute; Psoriatic Arthritis Program, University Health Network; Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, Toronto, Ontario, Canada
  1. Correspondence to:
    D van der Heijde
    Department of Rheumatology, University Hospital Maastricht, PO Box 5800, 6202 AZ Maastricht, the Netherlands;


Structural damage assessed on conventional radiographs is an important outcome measure in psoriatic arthritis. This article reviews the available scoring methods. A full description of the methods is given as well as information on various aspects of validity.

  • DIP, distal interphalangeal (joint)
  • DS, destruction score
  • ICC, intraclass correlation
  • IP, interphalangeal (joint)
  • MCP, metacarpophalangeal (joint)
  • MTP, metatarsophalangeal (joint)
  • OMERACT, Outcome Measures in Rheumatology
  • PIP, proximal interphalangeal (joint)
  • PS, proliferation score
  • PsA, psoriatic arthritis
  • RA, rheumatoid arthritis
  • TNF, tumour necrosis factor, TS, total score
  • psoriatic arthritis
  • outcome
  • structural damage
  • radiographs
  • scoring methods
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