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Table 3 Distribution of magnetic resonance imaging findings in individual joints and bones of the hand

From: Low-field magnetic resonance imaging study on carpal arthritis in systemic sclerosis - low-grade erosive arthritis of carpal bones is an unexpected and frequent disease manifestation

  Synovitis Joint effusion
  Definitive Severe Definitive Severe
Joint     
   Radiocarpal 19 3 8 -
   Radioulnar 23 - - -
   Ulnocarpal 48 6 - -
   Intercarpal 52 3 47 -
   Carpometacarpal joint 1 6 - 3 -
   Metacarpophalangeal joint 1 13 - 11 -
   Metacarpophalangeal joint 2 6 - 3 -
   Metacarpophalangeal joint 3 23 - - -
   Metacarpophalangeal joint 4 16 - 5 -
   Metacarpophalangeal joint 5 16 - 5 -
  Bone marrow edema Erosion
  Definitive Severe Definitive Severe
Bone     
   Ulna/radius - - 3 -
   Scaphoid 3 - 13 -
   Lunate 18 11 45 3
   Triquetral 8 - 50 -
   Pisiform - - - -
   Trapezium 5 3 13 -
   Trapezoid - - 5 -
   Capitate 3 - 24 -
   Hamate - - 3 -
   Metacarpal base 1 to 5 2 1 2 -
   Metacarpal head 1 to 5 1 - 8 -
   Phalangeal base 1 to 5 - - 2 -
  1. For each magnetic resonance imaging feature, frequencies of definite and severe manifestation are indicated as a percentage. -, not present. Joint effusion, bone marrow edema and erosions could be determined in 38 hands from our 26 patients. Synovitis could only be assessed in 31 hands, due to lack of venous access for the application of contrast agent.