Table 3.

Performance of lobe-based radiomics method compared with other-region radiomics method for COPD severity staging in dataset 1. Four categories represent GOLD I vs. GOLD II vs. GOLD III vs. GOLD IV and two categories represent GOLD I + GOLD II vs. GOLD III + vs. GOLD IV on Dataset1

Task	Radiomics method		Accuracy	Precision	Recall	F1-score	AUC
Four categories	Whole lung		0.49	0.45	0.49	0.45	0.46
	Lobe	RU	0.52	0.57	0.52	0.50	0.46
		RM	0.55	0.67	0.55	0.53	0.45
		RL	0.50	0.49	0.50	0.48	0.46
		LU	0.48	0.48	0.48	0.45	0.47
		LL	0.49	0.46	0.49	0.44	0.46
	Proposed method		0.63	0.71	0.63	0.62	0.49
Two categories	Whole lung		0.80	0.80	0.80	0.80	0.86
	Lobe	RU	0.78	0.78	0.78	0.77	0.84
		RM	0.78	0.78	0.78	0.78	0.86
		RL	0.82	0.82	0.82	0.81	0.87
		LU	0.78	0.78	0.78	0.77	0.84
		LL	0.81	0.81	0.81	0.81	0.86
	Proposed method		0.87	0.87	0.87	0.87	0.93