From: Differentiating brain metastasis from glioblastoma by time-dependent diffusion MRI
 | Precontrast 2D T1-weighted imaging | 2D T2-weighted imaging | 2D fluid-attenuated inversion recovery imaging | 3D susceptibility-weighted imaging | Postcontrast 2D T1-weighted imaging |
---|---|---|---|---|---|
Sequence | 2D SE | 2D TSE | 2D IR-TSE | 3D FLASH | 2D SE |
TR (ms) | 520 | 4000 | 9000 | 28 | 520 |
TE (ms) | 12 | 91 | 121 | 20 | 12 |
TI (ms) | N/A | N/A | 2530 | N/A | N/A |
FA (degree) | 70/180 | 150 | 120 | 15 | 70/180 |
Bandwidth (Hz/pixel) | 181 | 199 | 130 | 120 | 181 |
Number of excitations | 1 | 1 | 1 | 1 | 1 |
Turbo factor | N/A | 9 | 25 | N/A | N/A |
Acceleration factor | N/A | 2 | 2 | 2 | N/A |
FOV (mm) | 230 | 230 | 230 | 230 | 230 |
Matrix | 269 × 384 | 380 × 448 | 307 × 384 | 240 × 320 | 269 × 384 |
Thickness (mm) | 5 | 5 | 5 | 2.5 | 5 |
Intersection gap (mm) | 1 | 1 | 1 | N/A | 1 |
Acquisition time (s) | 148 | 80 | 126 | 174 | 148 |