Atlas for the OMERACT thumb base osteoarthritis MRI scoring system (TOMS)

Féline P.B. Kroon*, Charles G. Peterfy, Philip G. Conaghan, Violaine Foltz, Frédérique Gandjbakhch, Iris Eshed, Harry K. Genant, Mikkel Østergaard, Monique Reijnierse, Johan L. Bloem, Ida K. Haugen, Margreet Kloppenburg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This paper presents an atlas for the Outcome Measures in Rheumatology Clinical Trials (OMERACT) thumb base osteoarthritis MRI scoring system (TOMS). The atlas includes reference images of each grade of each feature that is assessed in TOMS (synovitis grade 0-3, subchondral bone defects grade 0-3, osteophytes grade 0-3, cartilage assessment grade 0-3, subluxation and bone marrow lesions grade 0-3) in the first carpometacarpal and scapho-trapezio-trapezoid joint. The presented reference images can be used to guide scoring of thumb base MRIs in patients with hand osteoarthritis according to the OMERACT TOMS.

Original languageEnglish
Article numbere000583
JournalRMD Open
Issue number1
StatePublished - 2018


  • hand osteoarthritis
  • magnetic resonance imaging
  • osteoarthritis


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