Table 1.
Breast MRI sequences and acquisition parameters in three centers.
| Hospital | Scanner | Sequence | TR(ms) | TE(ms) | FOV(mm2) | Slice thickness (mm) | Interslice gap (mm) | Acquisition time (sec) |
|---|---|---|---|---|---|---|---|---|
| Center 1 | 1.5-T MRI system (uMR 560, United Imaging) | T1WI+C | 5.1 | 2.1 | 320×320 | 2.4 | 0.48 | 394 |
| T1WI | 4.8 | 2.1 | 320×320 | 3 | 0.3 | 78 | ||
| T2WI | 3800 | 42.7 | 328×350 | 4 | 0.8 | 126 | ||
| 3.0-T MRI system (Siemens, Skyra) | T1WI+C | 4.67 | 1.66 | 360×360 | 1.5 | 0 | 333 | |
| T1WI | 6.05 | 2.46 | 340×340 | 1.5 | 0 | 45 | ||
| T2WI | 3500 | 79 | 340×340 | 4 | 0.4 | 219 | ||
| Center 2 | 1.5-T MRI system(Siemens, Germany) | T1WI+C | 4.87 | 2.4 | 380×380 | 3 | 1.5 | 322 |
| T1WI | 6.86 | 2.39 | 360×360 | 2 | 0.4 | 139 | ||
| T2WI | 2550 | 107 | 350×350 | 5 | 1 | 153 | ||
| Center 3 | 1.5-TMRI System (Philips, Netherlands) | T1WI+C | 7.0 | 3.4 | 340×340 | 3 | 0 | 568 |
| T1WI | 535 | 10 | 340×340 | 3 | 0 | 169 | ||
| T2WI | 4121 | 120 | 340×340 | 3 | 0 | 62 |