Table 1.
Scanning protocols.
| Sequences | T1 Mapping | T2 mapping | T2* mapping | T1-weighted | T2-weighted | PD-weighted | STIR |
|---|---|---|---|---|---|---|---|
| Type | 3D GRE | 2D FSE | 2D GRE | 2D FSE | 2D FSE | 2D FSE | 2D FSE |
| TR/TE (ms) | 15/5.2 | 2000/18.7–93.5 | 450/6.4– 47.7 | 581/20 | 2800/49 | 2800/20 | 2000/52 |
| FOV (mm) | 50×64 | 29×45 | 56×70 | 39×39 | 39×39 | 39×39 | 39×39 |
| Matrix | 250×320 | 210×320 | 208×256 | 384×384 | 384×384 | 384×384 | 384×384 |
| Resolution (mm) | 0.2×0.2 | 0.14×0.14 | 0.27×0.27 | 0.1×0.1 | 0.1×0.1 | 0.1×0.1 | 0.1×0.1 |
| Slice thickness (mm) | 1 | 1 | 1.5 | 1 | 1 | 1 | 1 |
| Averages | 4 | 4 | 8 | 2 | 3 | 3 | 2 |
| Echo train length | 1 | 5 | 5 | 4 | 6 | 5 | 6 |
| Number of slices | 10 to 48 | 6 to 36 | 6 to 24 | 6 to 48 | 16 to 48 | 6 to 48 | 6 to 30 |
| Scan time | 2’40” to 15’0” |
17’26” to 34’52” |
7’40” to 37’24” |
1’51” to 14’48” |
8’54” to 26’42” |
10’44” to 21’28” |
8’28”to 25’24” |
TR: time of repetition; TE: echo time; FOV: field of view; GRE: gradient echo; FSE: fast-spin-echo; PD: proton density; STIR: short time inversion recovery.