Method | Degree of correlation R2 | Pearson's correlation r | Note |
---|---|---|---|
Brodoefel et al.[17] | 0.07 | 0.1 | - |
Hur et al. [19] | - | 0.7 | Only area comparison |
Papadopoulou et al. [8] | - | 0.91 | Calcium is merged with Mixed plaque |
Utsunomiya et al. [20] | - | 0.40 | Only area comparison |
Voros et al.[16] | - | 0.84 | - |
de Graaf et al. [18] | - | 0.73 | - |
Proposed method | 0.64 | 0.79 | - |