Table 1.
Reference Acquisition Parameters for Contrast Enhanced Cardiovascular Magnetic Resonance (CE-MRA), 3D whole-heart Balanced State Free Precession (bSSFP) and modified Dixon (mDixon) sequences
| Parameter | CE-CMRA | bSSFP | mDixon |
|---|---|---|---|
| Average Acquisition Time Goal | Dynamic scan time goal ~ 12 s | 3:11 min | 3:08 min |
| TE (ms) | 0.87 | 2 |
1st image: 1.8 2nd image: 3.4 |
| TR (ms) | 2.2 | 4.5 | 5.2 |
| Flip Angle (degrees) | 30° | 90° | 15° |
| FOV (mm) | 260 × 260 | 260 × 260 | 260 × 260 |
| Acquired Voxel Size | 1.4 × 1.4 × 2.8 | 1.4 × 1.4 × 1 | 1.4 × 1.4 × 1 |
| Recon Voxel (mm3) | 0.9 × 0.9 × 0.4 | 0.9 × 0.9 × 1 | 0.9 × 0.9 × 1 |
| Sense | LR: 2.5; AP: 1.0 | LR: 1.5; AP: 1.0 | LR: 2.0; AP: 1.5 |
| Trigger Delay | NA | Mid-Diastole | Mid-Diastole |
| Shot Duration (ms) | NA | 130 | 130 |
| Navigator Window (mm) | Cartesian k-space acquisition window | 7 | 7 |
| Slice number | 90 | 135 | 135 |
| Bandwidth (Hz/pixel units) | 0.165 | 0.35 | 0.3 |
Abbreviations: mDixon modified-Dixon, bSSFP balanced Steady State Free Precession, CE-CMRA Contrast-Enhanced Cardiovascular Magnetic Resonance Angiography; TE echo time; TR repetition time; NA not applicable; LR Left Right; AP Anterior Posterior