Identifying lumbosacral plexus nerve root abnormalities in patients with sciatica using 3T readout-segmented echo-planar diffusion weighted MR neurography

Insights into Imaging

Table 1 Sequence parameters for standard MRI lumbar spine protocol and DWI-RESOLVE

Parameters	DWI-RESOLVE (b values: 50; 500; 800)	Sagittal T2 TSE	Sagittal T1 TSE	Axial T2 TSE
TR / TE (ms)	12,700 / 57	3500/92	650/8.6	2870/106
ETL	NA	17	3	21
FOV read (mm²)	250	280	280	190
Voxel size	1.9 × 1.9x4	0.7 × 0.7x4	0.4 × 0.4x4	0.6 × 0.6x4
Average	1	1	1	2
Bandwidth (Hz/px)	1012	250	252	250
Flip angle (°)	180	160	150	160
Acceleration factor	2	2	None	2
TA (minutes)	10:11	2:10	3:01	1:06

TR = repetition time; TE = echo time; ETL = echo train length; FOV = field of view; TA = acquisition time