Table 1.

The sevenfold cross-validation dice similarity coefficient (DSC) results between CBCT-VI_DL [CBCT-VI_DL(1) and CBCT-VI_DL(2)] and SPECT-VI of high functional lung (HFL), medium functional lung (MFL), and low functional lung (LFL) regions and their average values are summarized.

Fold number	DSC [CBCT-VIDL(1)]				DSC [CBCT-VIDL(2)]
	HFL	MFL	LFL	AVG	HFL	MFL	LFL	AVG
Fold 1	0.62 ± 0.05	0.46 ± 0.02	0.69 ± 0.05	0.59 ± 0.03	0.69 ± 0.03	0.52 ± 0.04	0.75 ± 0.04	0.65 ± 0.04
Fold 2	0.56 ± 0.10	0.43 ± 0.05	0.68 ± 0.04	0.55 ± 0.06	0.50 ± 0.06	0.39 ± 0.04	0.66 ± 0.04	0.52 ± 0.04
Fold 3	0.64 ± 0.11	0.50 ± 0.07	0.72 ± 0.07	0.61 ± 0.08	0.65 ± 0.10	0.51 ± 0.09	0.74 ± 0.09	0.63 ± 0.09
Fold 4	0.52 ± 0.12	0.41 ± 0.09	0.67 ± 0.10	0.53 ± 0.10	0.57 ± 0.12	0.46 ± 0.08	0.70 ± 0.14	0.58 ± 0.11
Fold 5	0.70 ± 0.05	0.55 ± 0.05	0.77 ± 0.04	0.67 ± 0.05	0.57 ± 0.11	0.43 ± 0.09	0.69 ± 0.07	0.56 ± 0.09
Fold 6	0.49 ± 0.06	0.42 ± 0.03	0.66 ± 0.04	0.52 ± 0.03	0.50 ± 0.08	0.42 ± 0.05	0.63 ± 0.05	0.52 ± 0.06
Fold 7	0.66 ± 0.08	0.51 ± 0.04	0.75 ± 0.05	0.64 ± 0.05	0.66 ± 0.07	0.52 ± 0.07	0.73 ± 0.11	0.64 ± 0.08