Diffusion-Weighted Imaging with Two Different -Values in Detection of Solid Focal Liver Lesions

Table 1

Parameters of three evaluation MR sequences.

Parameters	DWI600	DWI100	T2WI
Acquisition mode	Respiratory-triggered	Breath-hold	Respiratory-triggered
Repetition time (TR)	2-3 respiratory cycles	2400 ms	2-3 respiratory cycles
Echo time (TE)	Minimum	Minimum	80 ± 10 ms
-value (s/mm^2)	0 and 600	0 and 100	/
Section thickness (mm)	6	6	6
Intersection gap (mm)	1.5	1.5	1.5
Field of view (mm)	320–380	320–380	320–380
Rectangle FOV	90%–100%	90%–100%	75%
Matrix	128 × 128	128 × 128	224 × 320
Number of signal averages	4	2	2
Parallel acceleration factor	2	2	/
Echo train length	64	64	<20
Acquisition time	2-3 min	19 s	3–5 min

DWI600: diffusion-weighted imaging with -value of 0, 600 sec/mm²; DWI100: diffusion-weighted imaging with -value of 0, 100 sec/mm²; T2WI: T2-weighted imaging.