Table 3.

Intraobserver reproducibility of synovitis detection at individual joints by B-mode and power Doppler imaging. This evaluation was done by the sonographers who obtained the best intraobserver reproducibility during the examination of the 28 joints (sonographer #1 for B-mode and sonographer #4 for PD). Synovitis was defined as at least OMERACT grade 1 (ALG1) or OMERACT grade 2 (ALG2).

JointsSonographer #1 B-mode ALG1Sonographer #4 Power Doppler ALG1Sonographer #1 B-mode ALG2Sonographer #4 Power Doppler ALG2
NoYesκNoYesκNoYesκNoYesκ
Elbowno1001140NA1001140NA
yes04100400
Shoulderno1000.81140NA111–0.07140NA
yes13001100
Kneeno520.60140NA91NA140NA
yes03000000
PIPno1930.756050.272610.716720.48
yes2175241001
MCPno1840.6738130.52160.634860.77
yes642316637115
Wristno510.70530.44600.58900.83
yes17153514
  • NA: not applicable; PIP: proximal interphalangeal joints; MCP: metacarpophalangeal joints; OMERACT: Outcome Measures in Rheumatology Clinical Trials.