Table 3

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

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.

Szkudlarek et al. Arthritis Research & Therapy 2006 8:R52   doi:10.1186/ar1904

Open Data