Table 1.
MRA sequence parameters
| Sequence parameter | Native-SN-MRA | CE-MRA |
|---|---|---|
| Sequence type | bSSFP (TrueFISP) | T1-GRE |
| Acquisition trajectory | Radial | Cartesian |
| Respiration control | Self-navigated | Navigator based |
| Data efficiency | 100% | Respiration dependend (ca. 50%) |
| TR | 3.6 ms | 3.4 ms |
| TE | 1.83 ms | 1.33 ms |
| Radial undersampling factor | 5 | n.a |
| Fat saturation | Spectral | Spectral |
| FOV | Isotropic, 250 mm | 340 × 255 × 83 mm |
| Resolution | Isotropic, 1.3 mm | 1.3 × 1.3 × 1.4 mm |
| Contrast media | No | Yes |
CE-MRA contrast-enhanced MRA, Native-SN-MRA 3D radial respiratory self-navigated non-contrast-enhanced MRA, TE echo time, TR repetition time, FOV field of view, bSSFP balanced steady state with free precession, GRE gradient echo