Radiomics analysis using MR imaging of subchondral bone for identification of knee osteoarthritis

Table 4 AUC, accuracy, sensitivity, specificity and F1 score of four classification cases obtained from the radiomics-based and trabecular parameters-based model

	Normal vs. OA		Mild vs. advanced OA		Normal vs. advanced OA		Normal vs. mild OA
	Radiomics	Trabecular	Radiomics	Trabecular	Radiomics	Trabecular	Radiomics	Trabecular
AUC	0.961 (0.912–1.000)	0.873 (0.788–0.957)	0.995 (0.975–1.000)	0.691 (0.551–0.830)	0.997 (0.982–1.000)	0.918 (0.846–0.990)	0.919 (0.847–0.995)	0.751 (0.628–0.874)
Accuracy	0.920	0.765	0.964	0.625	0.984	0.820	0.898	0.727
Sensitivity	0.982	0.911	0.966	0.690	1.000	0.828	0.889	0.518
Specificity	0.812	0.562	0.963	0.556	0.969	0.812	0.906	0.750
F1 score	0.919	0.774	0.964	0.623	0.984	0.820	0.898	0.639

ISSN: 1749-799X