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Table 3 Numbers of joints with and without signs of synovitis in finger joints, stratified by imaging modality and combinations thereof

From: Ultrasonography of the metacarpophalangeal and proximal interphalangeal joints in rheumatoid arthritis: a comparison with magnetic resonance imaging, conventional radiography and clinical examination

Joint Joints with signs of synovitis    Joints with no signs of synovitis on US or MRI Number of joints examined Agreement: US versus MRI (%)
  US + MRI US only MRI only    
MCP 2nd 26 6 7 20 59 46 (78)
   Est. 12 3 2 3 20 15 (75)
   Early 14 2 0 3 19 17 (89)
   Control 0 1 5 14 20 14 (70)
MCP 3rd 21 7 9 22 59 43 (73)
   Est. 11 2 2 5 20 16 (80)
   Early 10 4 2 3 19 13 (68)
   Control 0 1 5 14 20 14 (70)
MCP 4th 11 7 3 37 58 48 (83)
   Est. 6 2 2 9 19 15 (79)
   Early 5 4 0 10 19 15 (79)
   Control 0 1 1 18 20 18 (90)
MCP 5th 11 12 3 32 58 43 (74)
   Est. 6 5 1 7 19 13 (68)
   Early 5 7 0 7 19 12 (63)
   Control 0 0 2 18 20 18 (90)
PIP 2nd 12 9 6 23 50 35 (70)
   Est. 6 3 3 2 14 8 (57)
   Early 6 5 1 5 17 11 (65)
   Control 0 1 2 16 19 16 (84)
PIP 3rd 14 4 5 27 50 41 (82)
   Est. 6 1 3 4 14 10 (71)
   Early 7 3 0 7 17 14 (82)
   Control 1 0 2 16 19 17 (89)
PIP 4th 10 5 4 31 50 41 (82)
   Est. 5 1 3 5 14 10 (71)
   Early 5 4 0 8 17 13 (76)
   Control 0 0 1 18 19 18 (95)
PIP 5th 2 9 6 32 49 34 (69)
   Est. 1 3 4 6 14 7 (50)
   Early 1 6 1 8 16 9 (56)
   Control 0 0 1 18 19 18 (95)
Total 107 59 43 224 433 331 (76)
   Est. 53 20 20 41 134 94 (70)
   Early 53 35 4 51 143 104 (73)
   Control 1 4 19 132 156 133 (85)
  1. All study participants included. early, early rheumatoid arthritis; Est., established rheumatoid arthritis; MCP, metacarpophalangeal joint; MRI, magnetic resonance imaging; PIP, proximal interphalangeal joint; US, ultrasonography.