Table 3

Correlation between ultrasonography and histological findings

B mode synovitis grade (r)B mode synovial thickness (r)Power Doppler grade (r)
Superior
 Histological inflammation score0.48†0.350.27
 Histological lining layer thickness score0.48†0.44†0.23
 Histological vascularisation score0.420.380.17
 CD68 score0.42†0.370.20
 FVIII score0.380.180.27
Medial
 Histological inflammation score0.240.260.11
 Histological lining layer thickness score0.53*0.44†0.22
 Histological vascularisation score0.230.160.13
 CD68 score0.45†0.49†0.52*
 FVIII score0.270.150.22
Lateral
 Histological inflammation score0.67*0.69*0.65*
 Histological lining layer thickness score0.55*0.69*0.66*
 Histological vascularisation score0.77*0.88**0.61*
 CD68 score0.50†0.48*0.30
 FVIII score0.78*0.84*0.74*
Overall median scores
 Histological inflammation score0.63*0.65**0.62*
 Histological lining layer thickness score0.64*0.61*0.77**
 Histological vascularisation score0.60*0.57*0.68**
 CD68 score0.49*0.59*0.63*
 FVIII score0.360.41†0.33
  • †P<0.1; *P<0.05; **P<0.001; ***P<0.0001.

  • FVIII, factor VIII staining; r, correlation coefficient.