Table 3.

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

		Jaccard coefficient
		Cervix (mean ± SD)	Bladder (mean ± SD)	Rectum (mean ± SD)
Before registration		0.62 ± 0.15	0.85 ± 0.06	0.51 ± 0.19
SimpleElastix		0.71 ± 0.08	0.83 ± 0.04	0.67 ± 0.11
DIRNet	Base model	0.82 ± 0.06	0.91 ± 0.03	0.78 ± 0.07
	2	0.76 ± 0.10	0.81 ± 0.04	0.63 ± 0.23
	3	0.72 ± 0.08	0.85 ± 0.04	0.66 ± 0.10
	4	0.86 ± 0.04	0.93 ± 0.01	0.88 ± 0.04