TABLE 5:

Epilepsy and Seizure Protocol for 7-T Brain MRI With and Without IV Contrast Medium

Sequence	Plane	Slice Thickness (mm)	Matrix	FOV (mm)	Interslice Distance (%)	Voxel Size (mm)	Acq Time (min:s)	TR/TE (ms)	Accel Fac	Interpolation
3D FS T1-weighted MP-RAGE	Sagittal	0.3	224 × 224	150	50	0.3 × 0.3 × 0.3	6:32	3000/2.49	GRAPPA 3	Yes
T2-weighted TSE	Coronala	1.5	208 × 208	80	0	0.2 × 0.2 × 1.5	5:35	4500/90	GRAPPA 2	Yes
FLAIR	Coronala	1.5	192 × 154	80	10	0.4 × 0.4 × 1.5	6:38	9000/68	GRAPPA 3	No
3D FLAIR SPACE	Sagittal	0.6	272 × 272	160	NA	0.6 × 0.6 × 0.6	13:14	9000/248	GRAPPA 3	No
3D T2-weighted SPACE	Sagittal	0.8	224 × 224	180	NA	0.8 × 0.8 × 0.8	7:26	5420/118	CAIPIRINHA 3	No
SWI	Axial	1.4	640 × 640	220	20	0.2 × 0.2 × 1.4	6:28	22/15	GRAPPA 3	Yes
After IV injection of contrast medium (0.05 mL/kg) followed by normal saline flush (10 mL) IV, both at 2 mL/s
DSC perfusionb	Axial	1.6	146 × 146	225	0	1.5 × 1.5 × 1.6	3:24	1500/24	Slice accel 3	No
DWI RESOLVE	Axial	2.0	192 × 144	230	20	1.2 × 1.2 × 2.0	2:49	6200/46 and 72	Slice accel 3	No
3D FS T1-weighted MP-RAGE	Sagittal	0.3	224 × 224	150	50	0.3 × 0.3 × 0.3	6:32	3000/2.49	GRAPPA 3	Yes

Note—Total acquisition time is approximately 55 minutes. Acq = acquisition, Accel Fac = acceleration factor, FS = fat-saturated, TSE = turbo spin-echo, CAIPIRINHA = controlled aliasing in parallel imaging results in higher acceleration, SWI = susceptibility-weighted imaging, DSC = dynamic susceptibility contrast, accel = acceleration, RESOLVE = readout segmentation of long variable echo trains.

^aOblique plane in orientation of hippocampus.

^bOptional sequence performed at discretion of ordering clinician and radiologist.