Table 3.

Comparison of qualitative analysis between DL DWI and conventional DWI.

		Conventional DWI	DL DWI	P Value
Overall image quality		4.16 ± 0.47	4.17 ± 0.50	0.77
GW differentiation		4.86 ± 0.42	4.83 ± 0.43	0.21
DG differentiation		4.78 ± 0.44	4.77 ± 0.44	0.70
Artifact	Motion Others	5.9% (n = 37) 43.2% (n = 16) 56.8% (n = 21)	21.5% (n = 136) 11.0%(n = 15) 89.0%(n = 121)	< 0.0001
Lesion conspicuity	≤ 5 mm	4.14 ± 0.79	4.58 ± 0.72	0.03
	> 5 mm	4.46 ± 0.76	4.63 ± 0.69	0.02
Lesion conspicuity		4.43 ± 0.77	4.62 ± 0.69	0.005

Data are mean ± standard deviation and averaged scores of two observers.

DL DWI indicates diffusion weighted imaging with deep learning reconstruction.

GW: gray-white matter.

DG: deep gray matter.