Table 1. Acquisition parameters for real-time MRI.
Contrast | Head | Heart | Phantom | |||
---|---|---|---|---|---|---|
T1 | T2/T1 | T1 | T1 | |||
Imaging time (ms) | 33 | 60 | 18 | 40 | ||
Rate/frames (s-1) | 30 | 17 | 55 | 25 | ||
Resolution (mm3) | 1.5×1.5×10 | 1.0×1.0×6 | 1.6×1.6×6 | 1.2×1.2×6 | ||
FOV (mm2) | 192×192 | 192×192 | 256×256 | 192×192 | ||
Reconstruction matrix (mm2) | 128×128 | 192×192 | 160×160 | 160×160 | ||
Acquired spokes | 17 | 17 | 9 | 17 | ||
TR (ms) | 1.96 | 3.53 | 2.0 | 2.32 | ||
TE (ms) | 1.28 | 1.98 | 1.23 | 1.58 | ||
Flip angle/deg | 5 | 35 | 8 | 8 | ||
Bandwidth (Hz pixel-1) | 1,860 | 870 | 1,490 | 1,565 |
MRI, magnetic resonance imaging; FOV, field of view.