Parameter | Score = 0 | Score = 1 | Score = 2 | Score = 3 | |
---|---|---|---|---|---|
I) | Degree of stenosis | < 40% (NASCET) | ≥ 40% (NASCET) | ||
II) | Echogenicity | Low echogenicity or echolucency | Intermediate echogenicity | Hyper-echogenicity | |
III) | Texture | Homogeneous | Heterogeneous | ||
IV) | Surface | Smooth | Irregular |