. Author manuscript; available in PMC: 2016 Dec 19.

Published in final edited form as: Australas Phys Eng Sci Med. 2014;37(3):483–493. doi: 10.1007/s13246-014-0276-7

Table 4.

Image Quality Scores (mean ± SDs)

	LDCT25%	LDCT50%	SDCT	Processed LDCT50%	Processed LDCT25%
Noise Suppression	1.92 ± 0.31 ^*	2.35 ± 0.26 ^*	3.94 ± 0.22	3.99 ± 0.16	3.78 ± 0.25
Artifact Suppression	2.07 ± 0.28 ^*	2.41 ± 0.24 ^*	3.89 ± 0.19	4.02 ± 0.23	3.65 ± 0.29
Contrast Preservation	1.75 ± 0.30 ^*	2.46 ± 0.37 ^*	3.81 ± 0.24	3.78 ± 0.24	3.53 ± 0.27 ^*
Tissue Discrimination	1.66 ± 0.33 ^*	2.36 ± 0.31 ^*	3.86 ± 0.27	3.75 ± 0.28	3.51 ± 0.33 ^*
Overall Image Quality	1.72 ± 0.28 ^*	2.32 ± 0.36 ^*	3.95 ± 0.25	3.90 ± 0.29	3.68 ± 0.32

means significantly different from the mean scores for the reference SDCT images (P<0.05).