4.2.2 - Imaging Series
|
Timing
Parameters |
Series 1 |
Series 2 |
Series 3 |
Series 4 |
Series 5 |
Series 6 |
|
|
Axial Localizers
2D-GRE |
Coronal
Oblique
PD FSE |
Coronal
Oblique
T2 FSE FS* |
Sagittal
Oblique
PD FSE |
Axial
PD
FSE |
Axial FSE
Labral
Window |
|
TR/TE |
34/13/ms |
3500-4000/36 |
3000/4000/60 |
4000/32 |
3500-4000/34 |
2500/13 |
|
ETL |
— |
8-12 |
10-15 |
10-13 |
8-10 |
4-5 |
|
Flip Angle |
30 |
— |
— |
— |
— |
— |
|
RBW |
15.6 kHz |
31.25 |
20.8 |
20.8 |
31.25 |
20.8 |
|
FOV |
24cm |
15cm |
16cm |
16cm |
15cm |
14cm |
|
Matrix |
256 x 128 |
512 x 384 |
256 x 224 |
512 x 224 |
512 x 384 |
256 x 256 |
|
Slice Thickness |
5mm |
3mm |
3.5mm |
4mm |
3.5mm |
3.0mm |
|
Interslice Gap |
0mm |
0mm |
0.5mm |
0mm |
0mm |
0mm |
|
NEX |
0.75 |
2 |
2 |
2 |
2 |
2 |
|
Acquisition Time |
32s |
5-6min |
2-4min |
2-4min |
5-7min |
4-5min |
|
Fat Sat |
no |
no |
yes |
no |
no |
no |
|
Tailored RF |
no |
no |
no |
no |
no |
no |
|
No Phase Wrap |
no |
yes |
yes |
yes |
yes |
yes |
|
Flow
Compensation |
no |
no |
no |
no |
no |
no |
|
Sat |
no |
left |
left |
left |
left |
left |
|
Freq |
|
S/I |
S/I |
S/I |
R/L |
R/L |
* On units with either the LX 8.2.5, 5.8 platforms and late software revisions, an "Improved Fat Sat" technique is used to provide fat suppression. For the Improved Fat Sat technique, it is recommended that the TEeff on the images with fat suppression be lowered to approximately 60ms (from 84ms for conventional fat sat). Both tissue contrast and SNR will be maintained.
|
