Table 3 Correlations of power Doppler signal amount to histopathological parameters.

	r	p Value
Histopathological score	0.239	NS
Villous hypertrophy of the synovialsurface	−0.172	NS
Surface fibrin	0.328	<0.05
Multiplication of synovial lining	0.071	NS
Subsynovial polymorphonuclear leucocytes	0.397	<0.01
Subsynovial mononuclear leucocytes	0.134	NS
Proliferation of blood vessels	−0.03	NS
Fibrosis	0.131	NS

NS, not significant.