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Table 4 Conformity of MRI and US findings in areas examined 1 in 11 clinically affected joints

From: Comparison of ultrasonography with Doppler and MRI for assessment of disease activity in juvenile idiopathic arthritis: a pilot study

    Number of areas with conformity
  Joint Area Synovial hypertrophy Synovial contrast enhancement or hyperemia Effusion Erosion
    n     
  Ankle talo-crural 2 2 2 1 1
  n = 2 talo-navicular 2 0 0 1 2
   post. subtalar 2 1 1 2 2
   tendon sheaths 2 1 1 2 n/a
  Knee anterior 3 2 1 2 3
  n = 3 lateral 3 2 2 2 3
   medial 3 3 2 2 3
   Baker’s cyst 3 1 0 1 n/a
  Wrist radio-carpal 6 6 6 5 4
  n = 6 midcarpal 6 3 3 6 4
   dist. radio-ulnar2 - - - - -
   tendon sheaths 6 6 5 5 n/a
Total 11   381 27 23 29 22
  1. 144 areas examined by MRI, 38 areas examined by US.
  2. 2Distal radio-ulnar joint examined by MRI only, not by US.
  3. n/a = non applicable.