Table 2. Image Quality Scores.

Parameters	C-DWI	SMS2-DWI	SMS3-DWI	P*	P†: C vs. SMS2	P†: SMS2 vs. SMS3	P†: C vs. SMS3
Sharpness	3.54 ± 0.47	3.58 ± 0.40	3.02 ± 0.50	< 0.001	> 0.999	< 0.001	< 0.001
Distortion	2.76 ± 0.51	2.78 ± 0.48	2.78 ± 0.48	0.526
Artifact	3.48 ± 0.40	3.42 ± 0.37	2.84 ± 0.38	< 0.001	0.441	< 0.001	< 0.001
Lesion conspicuity	3.67 ± 0.52	3.67 ± 0.54	3.42 ± 0.36	< 0.001	> 0.999	< 0.001	< 0.001
Overall image quality
b1000	3.50 ± 0.44	3.65 ± 0.36	3.06 ± 0.46	< 0.001	0.054	< 0.001	< 0.001
ADC	3.49 ± 0.45	3.50 ± 0.39	3.13 ± 0.40	< 0.001	> 0.999	< 0.001	< 0.001

Means and standard deviations of image quality obtained by two radiologists are summarized. Sharpness, artifact, and lesion conspicuity were evaluated in DWI (b1000). ^*p values were obtained from overall comparison among C-DWI, SMS2-DWI, and SMS3-DWI, ^†Dunn-Bonferroni post-hoc test was performed in case of significant differences in overall Friedman test. b1000, b = 1000 s/mm². ADC = apparent diffusion coefficient