Table 1. Experimental parameters for real-time cardiac MRI.
| Field strength |
1.5 T |
3 T |
7 T |
||||
|---|---|---|---|---|---|---|---|
| Contrast | SSFP | SSFP | T1 | T1 | |||
| Field-of-view/mm2 | 256.00×256.00 | 256.00×256.00 | 256.0×256.0 | ||||
| Image matrix size | 144.00×144.00 | 160.00×160.00 | 208.0×208.0 | ||||
| Resolution/mm3 | 1.80×1.80×8.00 | 1.60×1.60×6.00 | 1.2×1.2×6.0 | ||||
| Repetition time/ms | 2.72 | 2.80 | 2.22 | 2.56 | |||
| Echo time/ms | 1.36 | 1.40 | 1.36 | 1.59 | |||
| Spokes per image | 15.00 | 11.00 | 15.00 | 13.00 | |||
| Imaging time/ms | 40.80 | 30.80 | 33.30 | 33.30 | |||
| Frame rate/s-1 | 25.00 | 32.00 | 30.00 | 30.00 | |||
| Undersampling factor | 15.00 | 23.00 | 17.00 | 25.00 | |||
| Flip angle/degree | 35.00 | 30.00 | 10.00 | 10.00 | |||
| Bandwidth/Hz Pixel-1 | 1,929.00 | 1,736.00 | 1,736.00 | 1,335.00 | |||
MRI, magnetic resonance imaging; SSFP, steady-state free precession.