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Response to: ‘Frequency of MRI changes suggestive of axial spondyloarthritis in the axial in a large population-based cohort of individuals aged <45 years’ by Parperis
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  1. Xenofon Baraliakos1,
  2. Adrian Richter2,
  3. Carsten O Schmidt3,
  4. Juergen Braun1
  1. 1 Rheumazentrum Ruhrgebiet, Ruhr-University Bochum, Herne, Germany
  2. 2 Epidemiology, German Rheumatism Research Center, Berlin, Germany
  3. 3 Institute for Community Medicine, University of Greifswald, Greifswald, Germany
  1. Correspondence to Dr Xenofon Baraliakos, Rheumazentrum Ruhrgebiet, Ruhr-University Bochum, Bochum 44801, Germany; baraliakos{at}me.com

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We agree with the authors of the comment that caution in the interpretation of MRI is needed, though we think this is generally the case for any kind of imaging techniques. Regarding the axial skeleton including the spine and the sacroiliac joints (SIJs) this is particularly critical if identification of patients with axial spondyloarthritis (axSpA) is pursued. In this context our study1 confirms earlier data.2 We conclude that false positive MRI findings account for much of the confusion that has been created in relation to the Assessments in Spondyloarthritis International Society (ASAS) classification criteria.3

However, Dr Parperis has a different issue4 since he proposes …

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