Table 1 Scanning parameters
From: A 72-channel receive array coil allows whole-heart cine MRI in two breath holds
SENSE-2 16-channel | SENSE-2 72-channel | SENSE-4 72-channel | SENSE-6 72-channel | C-SENSE-2 72-channel | C-SENSE-4 72-channel | C-SENSE-6 72-channel | |
|---|---|---|---|---|---|---|---|
Field of view (mm) | 350 × 350 | 350 × 350 | 350 × 350 | 350 × 350 | 350 × 350 | 350 × 350 | 350 × 350 |
Reconstructed plane resolution (mm) | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 – 1.98 | 0.99 – 1.98 |
Slice thickness/gap (mm) | 8/0.5 | 8/0.5 | 8/0.5 | 8/0.5 | 8/0.5 | 8/0.5 | 8/0.5 |
Echo time/repetition time (ms) | 1.5/2.9 | 1.5/3.0 | 1.4/2.8 | 1.6/3.2 | 1.5/3.0 | 1.5/3.1 | 1.6/3.2 |
Temporal resolution (ms) | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Flip angle (degree) | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
Pixel bandwidth (Hz/pixel) | 1,894 | 1,894 | 2,289 | 1,701 | 1,894 | 1,812 | 1,603 |
Cardiac gating | Retrospective | Retrospective | Retrospective | Retrospective | Retrospective | Retrospective | Retrospective |
Reconstructed cardiac phases | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Trajectory | Cartesian | Cartesian | Cartesian | Cartesian | Cartesian | Cartesian | Cartesian |
SENSE acceleration factor | 2 | 2 | 4 | 6 | - | - | - |
C-SENSE acceleration factor | - | - | - | - | 2 | 4 | 6 |
Receive array coil (+12 posterior) | 16 channels | 72 channels | 72 channels | 72 channels | 72 channels | 72 channels | 72 channels |
Number of slices | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Number of breath-holds | 7 | 7 | 3 | 2 | 7 | 3 | 2 |
Total breath-hold timea (s) | 70 | 70 | 42 | 28 | 70 | 42 | 28 |
Slices per breath-hold | 2 | 2 | 5–4 | 7 | 2 | 5–4 | 7 |