MEG FSPGR - Suitable for MEG/fMRI/Retinotopic/mri3dX
3D FSPGR
Oblique-Axial
resolution: 1mm isotropic
matrix 256x256x176,
field of view 256x256x176
TR/TE=7.9/3.0 ms
TI=450ms
Flip angle=20deg
1 NEX
(acq time ~ 10min)
Quick FSPGR -
Suitable for MEG/fMRI/Retinotopic/mri3dX
3D FSPGR
Oblique-Axial
resolution: 1mm isotropic
matrix 256x192x176 (zero-padded to 256x256x176),
field of view 256x192x176mm
TR/TE=7.9/3.0 ms
TI=450ms
Flip angle=20deg
1 NEX
(acq time ~ 7min)
High-Resolution FSPGR - NOT suitable for mri3dX/MEG/Retinotopic
3D FSPGR
Oblique-Axial
resolution: 0.8mm isotropic
matrix 320x320x194 (zero padded to 512x512x194)
field of view 256x256x155mm
TR/TE=7.9/3.0 ms
TI=450ms
Flip angle=20deg
1 NEX
(acq time ~ 10min)
30 direction DTI
Oblique-Axial.
(ACPC)
TR/TE=Cardiac Gated/87ms (effective)
FOV: 23cm
Acquisition matrix: 96x96
Slice Thickness: 2.4mm
60 slices
30 directions, 3B0.
Parallel acceleration (ASSET) factor=2
(acq time~13mins)
60 direction DTI
Oblique-Axial. (ACPC)
TR/TE=Cardiac Gated/87ms (effective)
FOV: 23cm
Acquisition matrix: 96x96
Slice Thickness: 2.4mm
60 slices
60 directions, 6B0.
Parallel acceleration (ASSET) factor=2
(acq time~25mins)
3.4mm Isotropic GRE-EPI (for fMRI)
An fMRI data set was acquired using Gradient Echo-EPI with the following parameters; TR/TE=3000/35 ms, flip angle=90deg, acquisition matrix=64x64, field-of -view=22cm. 53 slices of thickness 3.4mm were acquired, orientated parallel with each subject's ACPC line (oblique-axial). A parallel acceleration (ASSET) factor of 2 was used.
