Table 1. MRI Acquisition Parameters.
| T2-Weighted Imaging | Diffusion-Weighted Imaging | Dynamic Susceptibility Contrast-Enhanced Imaging | R1 Map | |
|---|---|---|---|---|
| Sequence | Fast-spin echo sequence | Spin-echo EPI sequence | Gradient-echo EPI sequence | Relaxation-enhancement with variable repetition time sequence |
| TR/TE, ms | 4000/33 | 3000/18.7 | 1000/16 | TR = 600, 900, 1500, 2500, 4000, 7000; TE = 12.15 |
| Other parameters | Rare factor = 8 | b value (s/mm2) = 0 and 800 | Flip angle = 35° | Rare factor = 4 |
| Field of view, mm | 28 x 28 | 28 x 28 | 28 x 28 | 28 x 28 |
| Matrix size | 96 x 96 | 96 x 96 | 96 x 96 | 64 x 64 |
| Slice number | 16 | 16 | 16 | 16 |
| Slice thickness, mm | 1 | 1 | 1 | 1 |
| Acquisition time | 1 min 36 sec | 3 min 36 sec | 3 min | 8 min 48 sec |
EPI = echo planar imaging, TE = echo time, TR = repetition time