Table 4:

Results of the qualitative image evaluation^{^a}

Assessment	T1-Weighted BB (Mean) (95% CI)	T1-Weighted Dixon (Mean) (95% CI)	P (Intrareader Comparison)
Overall image quality
Reader 1	4.33 ± 0.71 (4.05–4.50)	4.45 ± 0.58 (4.25–4.58)	.36
Reader 2	4.22 ± 0.64 (3.98–4.36)	4.06 ± 0.58 (3.86–4.19)	.07
Mean	4.27 ± 0.68 (4.05–4.41)	4.25 ± 0.61 (4.13–4.40)	.81
Artifacts
Reader 1	4.25 ± 0.69 (3.98–4.41)	4.57 ± 0.57 (4.36–4.71)	.01^{^b}
Reader 2	4.25 ± 0.72 (3.97–4.42)	4.16 ± 0.76 (3.86–4.30)	.20
Mean	4.25 ± 0.70 (4.03–4.39)	4.36 ± 0.70 (4.17–4.49)	0.17
Diagnostic confidence
Reader 1	4.22 ± 1.00 (3.70–4.43)	4.24 ± 0.74 (3.96–4.39)	.90
Reader 2	4.41 ± 0.80 (4.08–4.59)	3.96 ± 0.94 (3.55–4.14)	< 0.001^{^b}
Mean	4.31 ± 0.91 (3.98–4.49)	4.10 ± 0.85 (3.86–4.24)	.04
Visual contrast enhancement
Reader 1	1.92 ± 1.23 (1.35–1.89)	1.92 ± 1.21 (1.36–1.89)	1.00
Reader 2	1.84 ± 1.08 (1.36–1.84)	1.71 ± 0.90 (1.36–1.73)	.007^{^b}
Mean	1.88 ± 1.15 (1.36–1.87)	1.81 ± 1.07 (1.35–1.82)	0.11

↵a The results are listed separately per reader (reader 1 + reader 2) and as mean values between the readers, given as mean values with SDs and 95% confidence intervals.
↵b Significant differences between T1-weighted BB and T1-weighted Dixon (P < .05).