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Table 3 Comparison of ultrasonography and MRI examination in the diagnosis of RA (joint number: n = 1364)

From: Comparison of the clinical effectiveness of US grading scoring system vs MRI in the diagnosis of early rheumatoid arthritis (RA)

Method

Synovitis

Joint effusion

Tenosynovitis

Bone erosion

US

1074 (78.74%)

403 (29.55%)

426 (31.23%)

572 (41.94%)

MRI

1053 (77.20%)

420 (30.79%)

446 (32.70%)

886 (64.96%)

χ 2

0.94

0.50

0.67

145.26

P

0.33

0.48

0.41

0.0001

  1. When the PDUS or GSUS score is ≥ 1, the diagnostic result is considered positive for early RA