Table 4.

Segmentation performance of the full two-step segmentation pipeline and other state-of-the-art segmentation methods.

Model	Metric	Prostate	Bladder	Rectum	SV	Femoral heads	Average
nnUNetv2	DSC	0.826 ± 0.075	0.935 ± 0.091	0.832 ± 0.045	0.722 ± 0.108	0.926 ± 0.019	0.848 ± 0.067
	HD95	6.327 ± 5.070	25.103 ± 67.73	10.332 ± 8.152	4.953 ± 1.871	4.804 ± 2.197	10.304 ± 17.003
nnFormer	DSC	0.830 ± 0.073	0.930 ± 0.100	0.838 ± 0.047 *	0.720 ± 0.094	0.923 ± 0.022	0.848 ± 0.067
	HD95	6.001 ± 4.151	24.911 ± 67.24	9.289 ± 7.881	4.771 ± 1.351	5.237 ± 2.778	10.042 ± 16.681
Swin UNETR	DSC	0.831 ± 0.067	0.920 ± 0.175	0.828 ± 0.049	0.727 ± 0.106	0.924 ± 0.033	0.846 ± 0.086
	HD95	5.829 ± 3.115	11.554 ± 46.12	8.561 ± 6.060	5.550 ± 6.155	5.040 ± 4.418	7.307 ± 13.173
Two-Step Pipeline	DSC	0.836 ± 0.071	0.947 ± 0.038 *	0.828 ± 0.057	0.724 ± 0.101	0.933 ± 0.020	0.854 ± 0.057
	HD95	5.454 ± 2.790	3.931 ± 4.864 *	8.840 ± 6.760	4.444 ± 1.385	3.947 ± 2.064 *	5.323 ± 3.573

SV: seminal vesicles. Bold indicates the best performance for each organ.

^*denotes statistically significant improvement over the second best performing method ($p<0.05$ using Wilcoxon signed-rank test with Bonferroni correction).