Table 1 MR acquisition parameters at a 1.5 T Ingenia Philips Healthcare®, Best, The Netherlands equipment
From: MRI of rectal cancer—relevant anatomy and staging key points
Parameter | Oblique axial T2-weighted turbo spin-echo* | Oblique coronal T2-weighted turbo spin-echo | Sagittal T2-weighted turbo spin-echo | Single-shot spin-echo echo-planar diffusion-weighted+ | 2D T1-weighted gradient-echo |
|---|---|---|---|---|---|
Echo time (ms) | 85 | 100 | 100 | 90 | 10 |
Repetition time (ms) | 5692 | 2000 | 2660 | 4288 | 683 |
Echo train length | 18 | 16 | 21 | – | – |
Slice thickness (mm) | 3 | 3 | 3 | 5 | 5 |
Gap (mm) | 0.3 | 0.3 | 0 | 0 | 1 |
Matrix | 416 × 465 | 200 × 179 | 252 × 223 | 76 × 65 | 292 × 300 |
Field-of-view (mm) | 250 × 328 | 160 × 160 | 200 × 200 | 200 × 200 | 290 × 348 |
In-plane resolution (mm2) | 0.6 × 0.7 | 0.8 × 0.8 | 0.8 × 0.9 | 2.6 × 3.01 | 1 × 1.16 |
Signal averages | 1 | 2 | 2 | 7 | 1 |