Table 1.
High-spatial-resolution MRI protocols for rectal cancer
| Sequences | TR/TE (ms) | Slice thickness/Gap (mm) | Slices | Base resolution | Phase resolution (%) | FOV (mm) | Voxel size (mm3) | Acquisition time |
|---|---|---|---|---|---|---|---|---|
| High-spatial-resolution T2-weighted imaging | ||||||||
| Sagittal | 3000/87 | 3/0 | 19 | 320 | 80 | 180 | 0.7 × 0.6 × 3.0 | 2 min 30 s |
| Coronal | 4000/77 | 3/0 | 25 | 384 | 80 | 220 | 0.7 × 0.6 × 3.0 | 2 min 52 s |
| Oblique axial | 3000/84 | 3/0 | 24 | 320 | 100 | 180 | 0.6 × 0.6 × 3.0 | 3 min 18 s |
| Contrast-enhanced three-dimensional high-spatial-resolution T1-weighted imaging | ||||||||
| Coronal | 10/4.9 | 1/0.2 | 144 | 384 | 100 | 380 | 1.0 × 1.0 × 1.0 | 3 min 10 s |
TR, repetition time; TE, echo time; FOV, field of view