Table 3.

Comparison of qualitative analysis scores between reduced FOV DWI and conventional DWI

	Anatomic detail	Lesion conspicuity	Presence of artifact	Overall image quality
Observer 1
Reduced FOV DWI (b = 0 s mm−2)	3.82 ± 0.39	3.60 ± 0.51	3.23 ± 0.53	3.36 ± 0.58
Conventional DWI (b = 0 s mm−2)	3.00 ± 0.31	2.80 ± 0.41	3.00 ± 0.62	3.00 ± 0.44
P value	<0.001	0.001	0.025	0.011
Reduced FOV DWI (b = 800 s mm−2)	3.41 ± 0.50	3.60 ± 0.51	3.05 ± 0.58	3.36 ± 0.49
Conventional DWI (b = 1000 s mm−2)	3.05 ± 0.38	3.13 ± 0.52	2.82 ± 0.59	2.95 ± 0.38
P value	0.005	0.008	0.025	0.003
Observer 2
Reduced FOV DWI (b = 0 s mm−2)	3.68 ± 0.48	3.47 ± 0.64	3.00 ± 0.62	3.32 ± 0.65
Conventional DWI (b = 0 s mm−2)	3.00 ± 0.44	2.73 ± 0.46	2.86 ± 0.56	2.91 ± 0.43
Pp value	<0.001	0.001	0.083	0.003
Reduced FOV DWI (b = 800 s mm−2)	3.41 ± 0.59	3.60 ± 0.51	2.77 ± 0.69	3.23 ± 0.61
Conventional DWI (b = 1000 s mm−2)	2.82 ± 0.59	3.00 ± 0.53	2.59 ± 0.59	2.68 ± 0.57
P value	0.001	0.007	0.046	0.001
Mean
Reduced FOV DWI (b = 0 s mm−2)	3.75 ± 0.44	3.53 ± 0.57	3.11 ± 0.58	3.34 ± 0.61
Conventional DWI (b = 0 s mm−2)	3.0 ±0.37	2.77 ± 0.43	2.93 ± 0.50	2.95 ±0.43
P value	<0.001	<0.001	0.005	<0.001
Reduced FOV DWI (b = 800 s mm−2)	3.41 ± 0.54	3.60 ± 0.50	2.91 ± 0.64	3.29 ± 0.55
Conventional DWI (b = 1000 s mm−2)	2.93 ± 0.50	3.07 ±0.52	2.70 ±0.59	2.82 ±0.49
P value	<0.001	<0.001	0.003	<0.001

DWI, diffusion weighted imaging; FOV, field of view.

Data are mean ± standard deviation.