Table 2.
Summary of the representative MRI parameters used by each manufacturer.
| Mode | Manufacturer | TR (ms) | TE (ms) | TI (ms) | Thickness (mm) | Acquisition Matrix | Bandwidth (Hz/pixel) | Flip Angle |
|---|---|---|---|---|---|---|---|---|
| T1 | GE | 6.5 | 2.8 | 400 | 1 | 256, 256, 216 | 244.1 | 12 |
| Philips | 7.7 | 3.5 | 1.1 | 220, 218, 164 | 241 | 8 | ||
| Siemens | 2,300 | 2.87 | 900 | 1.1 | 256, 256, 240 | 238 | 10 | |
| T2 | GE | 3,000 | 82.5 | 1.4 | 288, 288, 160 | 244.1 | 90 | |
| Philips | 2,500 | 183.6 | 1.1 | 220, 218, 164 | 583 | 90 | ||
| Siemens | 4,800 | 430 | 1.4 | 256, 250, 160 | 592 | 90 | ||
| DWI | GE | 17,000 | 87.2 | 2.4 | 128, 128 | 1,953.12 | 90 | |
| Philips | 9,679 | 92 | 2 | 128, 128 | 1,566.02 | 90 | ||
| Siemens | 12,000 | 92 | 2 | 128, 128 | 1,565 | 90 |
Diffusion-weighted imaging (DWI) data was acquired with 32 – 237 directions; TR: repetition time; TE: echo time; TI: inversion time.