TABLE 5.

Results of the ablation experiments (Optimal value for each evaluation metric is in bold). Legend: SA: self-attention module; LCT: local contextual Transformer; DR: Dense Residual module; R: Residual block. The ticks indicate which modules are included in each model.

Method	SA	LCT	DR	R	DSC↑	Recall↑	Precision↑	ASSD↓	HD↓
3D-UNet					0.837	0.844	0.837	0.613	30.076
SA-UNet	✓				0.843	0.835	0.857	0.506	32.642
LCT-UNet		✓			0.852	0.846	0.869	0.480	29.057
R-UNet				✓	0.841	0.832	0.882	0.533	29.054
DR-UNet			✓		0.852	0.863	0.847	0.494	29.821
DR-LCT-UNet		✓	✓		0.858	0.863	0.858	0.425	28.215