Table 2 MRI acquisition parameters (TR, repetition time; TE, echo time; FOV, field of view; GRAPPA, GeneRalized Autocalibrating Partial Parallel Acquisition)
From: Quantitative multiparametric MRI predicts response to neoadjuvant therapy in the community setting
MRI parameters | Anatomical scan | DW-MRI | B1 mapping | T1-mapping: variable flip angle | DCE-MRI |
|---|---|---|---|---|---|
Scan sequence | T1-weighted 3D gradient-echo FLASH | Single-shot spin-echo (SE) echo planar (EPI) | 3D spoiled gradient echo | T1-weighted 3D spoiled gradient echo | T1-weighted 3D spoiled gradient echo |
TR (ms) | 5.3 | 3000 | 8680 | 7.9 | 7.02 |
TE (ms) | 2.3 | 52 | 2 | 2.4 | 4.6 |
Flip angle (°) | 10 | 90 | 8 | 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 | 6 |
Acquisition matrix | 256 × 256 | 128 × 128 | 96 × 96 | 192 × 192 | 192 × 192 |
FOV (mm) | 256 × 256 | 256 × 256 | 256 × 256 | 256 × 256 | 256 × 256 |
Slice thickness (mm) | 1 | 5 | 5 | 5 | 5 |
GRAPPA acceleration factor | 2 | 2 | N/A | 3 | N/A |
Fat suppression | SPAIR | SPAIR | N/A | N/A | N/A |
Acquisition time (min:s) | 3:11 | 1:39 | 0:34 | 0:50 | 8:00 |