Table 3.

The results of subjective image quality analysis

	ACL	MCL	MM	LM	Bone	Noise	Artifact	Overall
Reader 1
1NSA-DLR	4.14 ± 0.35	4.90 ± 0.29	4.95 ± 0.21	5.00 ± 0.00	4.00 ± 0.00	3.71 ± 0.45	4.81 ± 0.39	3.76 ± 0.43
4NSA	3.76 ± 0.43	4.23 ± 0.68	3.95 ± 0.79	4.29 ± 0.88	3.86 ± 0.35	3.05 ± 0.21	4.42 ± 1.14	3.00 ± 0.69
p value	0.03	0.001	< 0.001	0.005	0.15	< 0.001	0.14	0.003
Reader 2
1NSA-DLR	4.19 ± 0.39	4.52 ± 0.50	4.48 ± 0.50	4.48 ± 0.50	4.00 ± 0.00	3.95 ± 0.21	5.00 ± 0.00	3.95 ± 0.37
4NSA	3.71 ± 0.63	3.81 ± 0.59	3.86 ± 0.77	3.95 ± 0.72	3.81 ± 0.39	3.05 ± 0.37	4.52 ± 1.17	2.90 ± 0.61
p value	0.02	0.001	0.008	0.02	0.07	< 0.001	0.17	< 0.001
Reader 3
1NSA-DLR	4.19 ± 0.39	4.62 ± 0.49	4.57 ± 0.49	4.52 ± 0.50	4.05 ± 0.21	3.95 ± 0.21	4.86 ± 0.35	3.95 ± 0.21
4NSA	3.90 ± 0.53	4.14 ± 0.77	3.86 ± 0.94	4.00 ± 0.82	3.90 ± 0.43	3.43 ± 0.58	4.43 ± 1.00	3.29 ± 0.76
p value	0.04	0.03	0.01	0.02	0.23	0.001	0.10	< 0.001

All variables are expressed as the mean ± standard deviation. p values that indicate significant differences are shown in bold