Table 1. Imaging Parameters for 1.5T and 3T Conventional Sagittal MR Sequences.
| Imaging Parameter | Thoracic (1.5T, 3T) | Lumbar (1.5T, 3T) | ||
|---|---|---|---|---|
| Sag T2 FSE | Sag T1 SE | Sag T2 FSE | Sag T1 SE | |
| TR (msec) | 3000, 3000 | 600–700, 500–700 | 3000, 3000 | 600–700, 500–700 |
| TE (msec) | 100, 120 | 10, 10 | 100, 120 | 10, 10 |
| Flip angle (°) | 90, 90 | 90, 90 | 90, 90 | 90, 90 |
| Matrix size | 512 × 250, 520 × 200 | 450 × 225, 520 × 220 | 512 × 200, 520 × 200 | 450 × 225, 520 × 200 |
| Field of view (cm) | 30, 30 | 30, 30 | 30, 30 | 30, 30 |
| Slice thickness (mm) | 4, 4 | 4, 4 | 4, 4 | 4, 4 |
| Bandwidth (kHz) | 50, 50 | 50, 50 | 50, 50 | 50, 50 |
| Echo train length | 16, 16 | 9, 9 | 16, 16 | 9, 9 |
| Signal average | 3, 2 | 3, 2 | 3, 2 | 3, 2 |
| Scan time (min:sec) | 3:20, 2:00 | 2:50, 2:16 | 3:20, 2:00 | 2:50, 2:16 |
FSE = fast spin-echo (not spine), Sag = sagittal, SE = spin-echo, TE = echo time, TR = repetition time