Table 2:
MR imaging parameters. TR = repetition time, TE = echo time, FOV = field of view, NEX = number of exposures, ETL = echo train length, BW = bandwidth.
Sequence | Use | TR (ms) | TE (ms) | Flip angle | FOV (cm) | Matrix size | Thickness (mm) | NEX | ETL | BW (kHz) |
---|---|---|---|---|---|---|---|---|---|---|
T2-weighted fast spin echo | Treatment planning | 4500 | 84.9 | 90° | 12–20 | 256 × 256 | 3 | 1 | 8 | 15.6 |
Fast spoiled gradient echo | Temperature maps | 19.5 | 13.0 | 30° | 16–20 | 256 × 128 | 3 | 1 | 1 | 15.6 |