A feasibility study of reduced full-of-view synthetic high-b-value diffusion-weighted imaging in uterine tumors

Insights into Imaging

Table 2 Inter-rater agreements on subjective assessment of 13b-protocol scanned and 5b-protocol synthetic rFOV-DWIs with b values of 1200 and 1500 s/mm²

B value	Overall image quality				Anatomy				Lesion conspicuity				Geometric distortion
B value	Reader1	Reader2	Kappa	p value	Reader1	Reader2	Kappa	p value	Reader1	Reader2	Kappa	p value	Reader1	Reader2	Kappa	p value
s_13b1200	1.58 ± 0.49	1.64 ± 0.48	0.767**	p < 0.001	1.64 ± 0.48	1.67 ± 0.47	0.816**	p < 0.001	1.61 ± 0.49	1.61 ± 0.49	0.766**	p < 0.001	1.61 ± 0.49	1.64 ± 0.48	0.704**	p < 0.001
Sy_5b1200	3.42 ± 0.50	3.43 ± 0.50	0.882**	p < 0.001	3.51 ± 0.50	3.54 ± 0.50	0.935**	p < 0.001	3.21 ± 0.50	3.21 ± 0.50	0.878**	p < 0.001	3.53 ± 0.50	3.50 ± 0.50	0.833**	p < 0.001
S_13b1500	1.64 ± 0.48	1.64 ± 0.48	0.759**	p < 0.001	1.60 ± 0.49	1.64 ± 0.48	0.822**	p < 0.001	1.58 ± 0.48	1.58 ± 0.49	0.771**	p < 0.001	1.58 ± 0.49	1.68 ± 0.47	0.706**	p < 0.001
Sy_5b1500	3.52 ± 0.49	3.54 ± 0.49	0.885**	p < 0.001	3.55 ± 0.49	3.57 ± 0.50	0.936**	p < 0.001	3.57 ± 0.49	3.57 ± 0.49	0.885**	p < 0.001	3.50 ± 0.50	3.56 ± 0.50	0.830**	p < 0.001

s = scanned DWI, sy = synthetic DWI, the image scores are expressed as means ± standard deviations, p values < 0.001 were considered statistically significant
**p < 0.001