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Table 2 Test characteristics for ultrasound-detected synovitis and tenosynovitis with MRI as reference

From: Do musculoskeletal ultrasound and magnetic resonance imaging identify synovitis and tenosynovitis at the same joints and tendons? A comparative study in early inflammatory arthritis and clinically suspect arthralgia

 

Sensitivity

Specificity

AUC

Sensitivity

Specificity

AUC

Sensitivity

Specificity

AUC

Synovitis

GS ≥ 1 (EULAR-OMERACT)

PD ≥ 1

GS ≥ 2 (EULAR-OMERACT) or PD ≥ 1

 MCP joints

39 (27; 53)

98 (95; 99)

0.69

54 (41; 66)

97 (94; 99)

0.75

54 (41; 66)

97 (94; 99)

0.75

 Wrist joints

29 (19; 40)

94 (89; 97)

0.61

30 (21; 41)

99 (95; 100)

0.64

30 (21; 41)

99 (95; 100)

0.64

 MTP joints

75 (61; 85)

80 (75; 85)

0.78

41 (28; 56)

99 (97; 99)

0.70

68 (53; 80)

86 (81; 89)

0.77

Tenosynovitis

GS ≥ 1

 

PD ≥ 1

GS ≥ 2 or PD ≥ 1

 

 Extensor wrist tendons

78 (59; 86)

80 (74; 86)

0.78

58 (42; 73)

98 (95; 99)

0.78

67 (50; 80)

97 (93; 98)

0.82

 Flexor wrist tendons

50 (31; 69)

94 (90; 97)

0.72

42 (24; 61)

99 (97; 100)

0.71

50 (31; 69)

99 (96; 100)

0.75

 Flexor MCP tendons

74 (60; 84)

89 (84; 92)

0.81

19 (11; 31)

100 (98; 100)

0.59

36 (24; 49)

100 (98; 100)

0.68

  1. Test characteristics are shown in percentages with a 95% CI except for the AUC, area under the receiver operating characteristic curve. GS greyscale, PD power Doppler