Table 2.

Comparison of the proposed method with respect to CP detection with the literature

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	-