Epilepsy Protocol - Neuroimaging Protocol - from Mass General Epilepsy Service Protocols & Guidelines
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Epilepsy Protocol - Neuroimaging Protocol
|
Sequence |
TE |
TR |
Flip |
FOV |
Matrix |
Slice Thickness (mm) |
Slice Gap (mm) |
b-value |
NEX |
Options |
Acquisition time (min:sec) |
|
Sagital T1 localizer |
14 |
500 |
|
200X400 |
192X256 |
5 |
1.5 |
|
1 |
|
1:37 |
|
Axial FSE T2 |
102 |
6000 |
|
200X400 |
(.75)256X320 |
5 |
1 |
|
2 |
|
3:13 |
|
Axial FLAIR |
120 |
10,000 |
TI=2200 |
200X 00 |
192X256 |
5 |
1 |
|
1 |
|
4:40 |
|
Coronal oblique T2 FSE |
102 |
6000 |
|
200X200 |
(.75)224X320 |
4 |
1 |
|
3 |
|
3:42 |
|
Coronal oblique FLAIR |
120 |
10,000 |
TI=2200 |
200X200 |
192X256 |
4 |
1 |
|
1 |
|
4:40 |
|
Coronal SPGR volumetric dataset |
8 |
30 |
35 |
200X200 |
160X256 |
1.5 |
0 |
|
1 |
|
10:18 |
|
Axial DWI |
72.9 |
7500 |
|
400X200 |
256X128 |
5 |
1 |
1000 s/mm2 |
1 |
EPI |
2:38 |
|
Axial Susceptibility GRE (Optional) |
25 |
750 |
20 |
200X200 |
(.75)192X256 |
5 |
1 |
|
2 |
|
3:41 |
|
Single Voxel Spectroscopy |
144 |
1500 |
|
200X400 |
|
|
|
|
8 |
|
|
Abbreviations DWI = Diffusion Weighted Imaging
FLAIR = Fluid Attenuated Inversion Recovery
Flip = Flip angle for gradient echo
FOV = Field of View
FSE = Fast Spin Echo
GRE = Gradient Echo
Matrix = Number of pixels in x and y direction
SPGR = Spoiled gradient recalled echo
TE = Echo Time
TI = Inversion time
TR = Repetition Time
Note: These parameters are customized for use on scanners at MGH but may not be optimal at other sites. No assurances are expressed or implied.
