Table 3 Inter-reader reliability for using different color Doppler methods (subjective, semi-quantitative and objective, quantitative) for assessment of maximal synovial vascularity in joints of patients with blood-induced disorders
Testing domain | US operators (data acquisition) | Reliability [ICC (95% CIs)] for interpretation of data by readers (1, 2) |
|---|---|---|
Semi-quantitative scoring system | ||
Canada | 1.00 (1.00, 1.00) | |
China | 0.98 (0.97, 0.98) | |
Quantitative scoring system | ||
China | ||
Area of pixels | 0.61 (− 0.51, 0.96) | |
Count of pixels | 0.60 (− 0.52, 0.96) | |
Canada | ||
Area of pixels | 0.67 (0.43–0.82) | |
Count of pixels | 0.70 (0.48–0.84) |