Imaging parameters used for 3D TOF MRA
| MR Imaging Scanner | ||
|---|---|---|
| Siemens Magnetom Avanto 1.5T | Philips Ingenia 1.5T HP | |
| Years of use | 2009–2011 | 2012 |
| Sequence type | T1WI 3D GRE | T1WI 3D FFE |
| TOF sequence parameters | TE: 7.15 ms; TR: 22 ms; NSA: 1 | TE: 6.91 (outphase) ms; TR: 25 ms; NSA: 1 |
| Pixel size (mm) MPS | 0.7/0.7/0.7 | 0.4/0.7/1.0 |
| Matrix RECON | 320 | 512 |
| Flip angle (°) | 25 | 20 |
| Total scan duration (min/sec) | 7/13 | 4/50 |
FFE indicates fast-field echo; GRE, gradient-recalled echo; MPS, measurement phase and section direction; NSA, number of sampling averages.