. Author manuscript; available in PMC: 2024 Jan 1.

Published in final edited form as: Med Phys. 2022 Sep 28;50(1):89–103. doi: 10.1002/mp.15958

TABLE 3.

Quantitative evaluations of synthetic projections at Angle 2, 3, and 4 respectively of the 150 testing patient studies.

Testing Groups	Projection Angle 2		Projection Angle 3		Projection Angle 4
Testing Groups	NMSE (×10⁻²)	P-value^a	NMSE (×10⁻²)	P-value^a	NMSE (×10⁻²)	P-value^a
CUSIP	3.57 ± 1.26	–	3.29 ± 1.63	–	3.23 ± 1.38	–
CUSIP-DuRDN	2.89 ± 1.08	< 0.001^*	2.93 ± 1.36	< 0.001^*	2.86 ± 1.06	< 0.001^*
Direct Sino2Sino	2.25 ± 1.02	< 0.001^*	2.47 ± 1.32	< 0.001^*	2.46 ± 1.13	< 0.001^*
DuDoSS (proposed)	2.18 ± 0.96	0.004^*	2.22 ± 1.05	< 0.001^*	2.20 ± 1.03	< 0.001^*

Two-tailed paired t-test of NMSE between the current and previous group in the table.

Refers to significant difference with a significance level of 0.05.