TABLE 2.
Percentage of erroneous voxels within the mask for all three phase‐unwrapping methods and second, middle, and last echo of the GRE acquisitions at 3T, 7T, and 9.4T
| TE (ms) | No. of erroneous voxels within the mask (%) | |||
|---|---|---|---|---|
| PRELUDE | BEST PATH | ROMEO | ||
| 3T GRE | 10.0 | 0.53 | 0.61 | 0.42 |
| 21.0 | 1.74 | 1.92 | 0.42 | |
| 31.0 | 2.97 | 3.31 | 0.42 | |
| 7T GRE | 5.0 | 0.27 | 0.29 | 0.12 |
| 40.0 | 5.70 | 5.40 | 0.12 | |
| 77.5 | 22.81 | 23.40 | 0.12 | |
| 9.4T GRE | 2.8 | 1.45 | 1.74 | 0.85 |
| 9.8 | 14.50 | 14.00 | 0.86 | |
| 16.8 | 26.58 | 24.85 | 0.86 | |
Voxels with 2πn phase differences (where n is an integer) from the temporal reference were counted as erroneous (see section 2.3).