3[2]Wakther M,Harms H,Krenn V.et al.Correlation of power Doppler snography with vascularity of the synovial tissue of the knee joint in pafients with osteoarthritis and rheumatoid arthritis.Arthritis rheum.2001,44(2):331338.
4[3]Wakefield RJ,Gibbon WW,Conaghan PC.,et al.The value of sonogra phy in the detection of bone erosions in pstients with rheumatoid arthri its;a comparison with eonventianal radiography.Arthritis Rheum,2000,43(12):2762-2770.
5[4]Schmidt WA,Volker L,Zacher J,et al.Colour DopplerultrasonogTaphy to detect pannus in knee joint synovitis.Clin Exp Rheumatol,2000,18(4):439-444.
6[5]Wakefield RJ.Gibbon WW,Emery P.The current status of ultrasonography in rheumatology.Rheumatology(Oxford),1999,38(3):195-198.