What is the role of gadolinium-enhanced T1-weighted (T1W) MRI in the diagnosis of juvenile idiopathic arthritis (JIA)?

Updated: Jul 25, 2019
  • Author: David D Sherry, MD; Chief Editor: Lawrence K Jung, MD  more...
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Answer

Synovitis and a joint effusion may have similar hyperintensity on T2-weighted (T2W) and short-tau inversion recovery (STIR) images. Therefore, gadolinium-enhanced T1-weighted (T1W) MRIs are necessary to accurately define active synovitis.


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