TABLE 4:

Pituitary 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-RAGEa	Sagittal	0.3	224 × 224	150	50	0.3 × 0.3 × 0.3	6:32	3000/2.49	GRAPPA 3	Yes
T1-weighted TSEb	Sagittal	2.0	384 × 384	160	10	0.4 × 0.4 × 2.0	5:35	500/8.5	GRAPPA 2	No
FS T2-weighted TSEb	Coronalc	1.5	704 × 704	210	20	0.2 × 0.2 × 1.5	4:41	4580/61	GRAPPA 3	Yes
T1-weighted TSEb	Coronalc	1.5	400 × 320	160	20	0.2 × 0.2 × 1.5	4:03	500/8.7	None	Yes
DWI RESOLVEa	Axial	2.0	192 × 144	230	20	1.2 × 1.2 × 2.0	2:49	6200/46 and 72	Slice accel 3	No
After IV injection of contrast medium (0.05 mL/kg) followed by normal saline flush (10 mL) IV, both at 2 mL/s
Dynamic T1-weighted FLASHb,d	Coronalc	2.0	228 × 228	200	10	0.9 × 0.9 × 2.0	2:59	130/3.23	None	No
T1-weighted TSEb	Sagittal	2.0	368 × 368	160	10	0.4 × 0.4 × 2.0	5:35	500/8.5	GRAPPA 2	No
T1-weighted TSEb	Coronalc	1.5	400 × 320	160	20	0.2 × 0.2 × 1.5	4:03	500/8.7	None	Yes
3D FS T1-weighted MP-RAGEa	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 43 minutes. Acq = acquisition, Accel Fac = acceleration factor, FS = fat-saturated, TSE = turbo spin-echo, RESOLVE = readout segmentation of long variable echo trains, accel = acceleration.

^aWhole-brain anatomic coverage.

^bLimited anatomic coverage, focused on the pituitary gland.

^cOblique plane in orientation of pituitary stalk.

^dOptional sequence, performed at discretion of ordering clinician and neuroradiologist.