Table 4.

Qualitative analysis

	ss-DTI		rs-DTI		ss-DTI vs. rs-DTI
	Mean	SD	Mean	SD	P-value
Reader 1
Distortion artifacts	3.4	0.663	2.3	0.458	0.001
Ghosting/Motion artifacts	2.5	0.5	3.0	0.572	0.121
Resolution	2.7	0.458	2.4	0.490	0.196
Overall image quality	3.2	0.6	2.3	0.458	0.002
Reader 2
Distortion artifacts	3.5	0.671	2.5	0.5	0.002
Ghosting/Motion artifacts	2.5	0.500	2.8	0.6	0.264
Resolution	2.8	0.748	2.5	0.5	0.331
Overall image quality	3.3	0.458	2.2	0.4	0.001

Grading of distortion artifacts, ghosting/motion artifacts, resolution and overall image quality is provided for each sequence and reader as mean ± SD on a 5-point Likert scale (artifacts: 1, none; 2, low; 3, moderate; 4, high; 5, very high; overall image quality: 1, excellent; 2, good; 3, moderate; 4, poor; 5, non-diagnostic). Paired t-tests were performed to assess potential group differences. Corresponding P-values are given. Italics indicate statistical significance.