Table 1.
Imaging Parameters
| Parameter | 1Dir PC-CMR | 3Dir PC-CMR |
|---|---|---|
| Temporal Resolution (ms) | 52.25 | 37.12 |
| TE (ms) | 2.3 | 2.77 |
| TR | 5.23 | 4.64 |
| Lines per segment | 5 | 2 |
| Flip Angle | 25° | 15° |
| Echo asymmetry | 33% before echo | 33% before echo |
| Bandwidth (Hz/pixel) | 420 | 558 |
| Venc (cm/s) | 150–500 | 150–500 |
| Slice Thickness (mm) | 8.0 | 8.0 |
| Triggering | Retrospective | Prospective |
| Matrix | 144 × 192 | 128 × 160 |
| FOV (mm) | 284 × 374 | 250 × 313 |
| Pixel dimensions (mm x mm) | 1.97 × 1.95 | 1.95 × 1.96 |
| Acceleration factor | GRAPPA R = 2 | VISTA R = 8 |
| Average scan time | 17 s | 10s |
TE Echo time, TR repetition time, Venc Velocity encoding, FOV Field of view (phase x frequency encode directions)