| Free-Breathing PCMR | Standard Breath-hold PCMR | Spiral Breath-hold PCMR |
---|---|---|---|
TE/TR (ms) | ~2.2 / 7.0 | ~2.2 / 7.0 | 2.1 / 8.0 |
Spiral Readouts | - | - | 36 |
Acceleration factor | 2 (GRAPPA) | 2 (GRAPPA) | 3 (SENSE) |
Matrix Size | 256 x 192 | 192 x 113 | 256 x 256 |
FOV (mm) | 200 - 400 | 290 - 400 | 400 |
Rectangular FOV (%) | 75 | 66 | 100 |
Readouts per segment | 3 | 4 | 2 |
Pixel bandwidth (Hz/pixel) | 543 | 543 | 1220 |
VENC (cm/s) | 180 - 400 | 180 - 400 | 180 - 400 |
NSAs | 3 | 1 | 1 |
Gating | Retrospective | Retrospective | Prospective |
Total Scan Duration (s) | 44 - 144 | 11 - 24 | 3 - 8 |
Voxel Size (mm) | ~ 0.8 - 1.5 | ~ 1.5 - 2.1 | 1.6 |
Temporal resolution | ~ 30.0 ms | ~ 40.0 ms | 32.0 ms |