Table 1.
Parameters of cMRI sequences with a 3.0 T clinic scanner without respiration holding
| T1WI In vivo | T2WI In vivo | Cine-MRI In vivo | DE-MRI In vivo | T1WI Ex vivo | T2WI Ex vivo | |
|---|---|---|---|---|---|---|
|
Sequence type |
TSE |
TSE |
True-FISP |
IR-turbo-FLASH |
SE |
SE |
|
Repetition time (ms) |
621 |
750 |
357 |
396 |
2300 |
3200 |
|
echo time (ms) |
15 |
74 |
1.6 |
1.54 |
4.12 |
490 |
|
Field of view (mm2) |
240×195 |
240×195 |
240×195 |
240×180 |
512×464 |
512×464 |
|
Filp angle (°) |
180 |
180 |
60 |
15 |
9 |
0 |
|
Bandwidth (Hz/Px) |
305 |
235 |
751 |
300 |
350 |
434 |
|
In-plane resolution (mm2) |
0.9×0.9 |
0.9×0.9 |
1.2×0.9 |
1.1×0.8 |
0.5×0.5 |
0.6×0.6 |
|
Slice thickness (mm) |
3.0 |
3.0 |
3.0 |
3.0 |
0.5 |
0.6 |
|
Slices |
8 |
8 |
1 |
10 (3D) |
64 (3D) |
52 (3D) |
|
Number of averages |
6 |
6 |
3 |
1 |
1 |
4 |
|
Inversion time (ms) |
(−) |
(−) |
(−) |
360 |
900 |
(−) |
|
Fat suppress |
No |
No |
Yes |
Yes |
Yes(Figure 6) |
Yes |
| No(Figure 7) | ||||||
|
Total acquisition time |
15 min 5 s |
7 min 32 s |
2 min 50s |
1 min |
5 min 21 s |
10 min 10 s |
|
Phase |
|
|
25 frames/cycle |
|
|
|
| Contrast agent (mmol/kg) | 0.1 |
TSE Tubo Spin echo, True-FISP: true fast imaging with steady-state precession; IR-turbo-FLASH: A segmented k-space inversion recovery turbo fast low angle shot.