Table 6.

Mean MCC and HD values using domain adversarial learning-based lymph node segmentation. P-values are based on MCC scores between training and unseen domains (scanners).

Training domain	Unseen domain	MCC	HD (μm)	P-value
A	–	0.86 ± 0.17	120.54 ± 61.25	7.39E − 31
	B	0.86 ± 0.18	72.79 ± 36.79
	C	0.86 ± 0.16	138.77 ± 67.04
	D	0.59 ± 0.32	201.67 ± 102.97
B	A	0.54 ± 0.34	179.34 ± 96.06	7.01E − 27
	–	0.86 ± 0.16	74.87 ± 39.61
	C	0.80 ± 0.19	152.30 ± 75.45
	D	0.67 ± 0.28	176.16 ± 102.91
C	A	0.84 ± 0.15	127.59 ± 72.42	1.59E − 29
	B	0.81 ± 0.20	77.69 ± 39.12
	–	0.86 ± 0.15	135.59 ± 72.14
	D	0.52 ± 0.31	221.54 ± 109.77
D	A	0.64 ± 0.35	179.04 ± 109.84	6.09E − 08
	B	0.84 ± 0.20	83.32 ± 49.29
	C	0.83 ± 0.20	153.92 ± 82.13
	–	0.85 ± 0.18	135.02 ± 74.26