Table 4.
The MRI sequences employed for acquisition of geometry and flow data. Details on spatial and temporal resolution of T1 turbo field echo (TFE) and turbo spin echo (TSE) sequences, image stack size and selected VENC values
| Phase | Sequence | Scan | Image plane | Image size | Voxel size, mm3 | Number of time frames | Scan duration, s | VENC, cm/s |
|---|---|---|---|---|---|---|---|---|
| I | T1 TFE | geometry (no flow) | y z | 40 × 256 × 256 | 2 × 0.977 × 0.977 | 1 | 138 | — |
| T1 TFE | geometry (flow) | y z | 40 × 256 × 256 | 2 × 0.977 × 0.977 | 1 | 138 | — | |
| T1 TFE | inlet, flow field, v x | x y | 192 × 192 × 35 | 1.302 × 1.302 × 6 | 1 | 151 | 12 | |
| T1 TFE | inlet, flow field, v y | x y | 192 × 192 × 35 | 1.302 × 1.302 × 6 | 1 | 155 | 12 | |
| T1 TFE | inlet, flow field, v z | x y | 192 × 192 × 35 | 1.302 × 1.302 × 6 | 1 | 114 | 80 | |
| II | TSE | geometry (no flow) | y z | 25 × 512 × 512 | 4 × 0.781 × 0.781 | 1 | 348 | — |
| T1 TFE | inlet, v x | x y | 192 × 192 × 1 | 1.302 × 1.302 × 10 | 28 | 132 | 5 | |
| T1 TFE | inlet, v y | x y | 192 × 192 × 1 | 1.302 × 1.302 × 10 | 28 | 132 | 5 | |
| T1 TFE | inlet, v z | x y | 192 × 192 × 1 | 1.302 × 1.302 × 10 | 44 | 132 | 40 | |
| T1 TFE | flow field, v x | x y | 192 × 192 × 10 | 1.302 × 1.302 × 10 | 25 | 1320 | 12 | |
| T1 TFE | flow field, v y | x y | 192 × 192 × 10 | 1.302 × 1.302 × 10 | 25 | 1320 | 12 | |
| T1 TFE | flow field, v z | x y | 192 × 192 × 10 | 1.302 × 1.302 × 10 | 25 | 1320 | 40 |