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Table 1 Color Doppler semi-quantitative scoring for assessment of ankles, elbows and knees of patients with blood-induced arthropathies

From: A semiquantitative color Doppler ultrasound scoring system for evaluation of synovitis in joints of patients with blood-induced arthropathy

Grades Criteria Score
Normal (grade 0) Normal: < 4 dots within box 0
Mild to moderate (grade 1)  ≥ 4 dots within box and < 50% of ROI filled with color pixels representing hyperemia 1
Severe (grade 2)  ≥ 50% of ROI filled with color pixels representing hyperemia 2
  1. Criteria: Based on the number of dots (color pixels) and extent of vascularity at the location with most severe findings and extent of vascularity within the color Doppler box
  2. ROI, region-of-interest