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