Table 2.

Dice coefficients calculated over deformed pelvic masks and the ground-truth masks for the different variants of DIRNet model. Results are given for all DIRNet models for the cervix, bladder, and rectum

		Dice coefficient
		Cervix (mean ± SD)	Bladder (mean ± SD)	Rectum (mean ± SD)
Before registration		0.75 ± 0.14	0.91 ± 0.05	0.65 ± 0.16
SimpleElastix		0.80 ± 0.06	0.90 ± 0.03	0.78 ± 0.09
DIRNet	Base model	0.86 ± 0.08	0.95 ± 0.01	0.87 ± 0.20
	2	0.83 ± 0.08	0.89 ± 0.02	0.74 ± 0.22
	3	0.79 ± 0.06	0.91 ± 0.02	0.79 ± 0.85
	4	0.89 ± 0.02	0.96 ± 0.01	0.93 ± 0.02