Table 3.

Image similarity in SSIMs and DSCs between T2W MR and two types of synthetic CT images (before applying DIR): MRCAT and GAN-based CT images.

		1	2	3	4	5	6	7	8	9	10	Avg
SSIM	MR vs. MRCAT (without DIR)	0.8124	0.8144	0.8217	0.8184	0.8170	0.8056	0.8082	0.8093	0.8079	0.8103	0.8125
	MR vs. Synthetic CT from GAN (without DIR)	0.8122	0.8159	0.8234	0.8211	0.8199	0.8082	0.8110	0.8119	0.8109	0.8128	0.8147
DSC (Body Contour)	MR vs. MRCAT (without DIR)	0.9922	0.9859	0.9928	0.9894	0.9917	0.9886	0.9904	0.9908	0.9916	0.9922	0.9906
	MR vs. Synthetic CT from GAN (without DIR)	0.9908	0.9833	0.9920	0.9926	0.9928	0.9912	0.9922	0.9925	0.9927	0.9935	0.9914