Table 2.
Effect of magnitude and phase corrections on SLAM relaxation and PD measurements with R = 10-fold acceleration
| No correction | With Correction | True valuea | |
|---|---|---|---|
| W2 T1 (ms) | 3700 | 2780 | 2700 ± 800 |
| W2 T2 (ms) | −15,240 | 1320 | 1200 ± 1380 |
| SM PD (vs. water) | 0.2 | 0.83 | 0.82 ± 0.2 |
| Fat T1 (ms) | 370 | 373 | 370 ± 100 |
| Fat T2 (ms) | 104 | 104 | 112 ± 31 |
| Fat PD (vs. water) | 0.44 | 0.7 | 0.67 ± 0.11 |
| L1 T1 (ms) | 493.4 | 507 | 514 ± 98 |
| L1 T2 (ms) | 52 | 51.7 | 53.4 ± 7.5 |
| L1 PD (vs. water) | 0.89 | 0.89 | 0.84 ± 0.09 |
| L2 T1 (ms) | 509.5 | 490.5 | 475 ± 127 |
| L2 T2 (ms) | 70 | 69 | 67.2 ± 16 |
| L2 PD (vs. water) | 0.67 | 0.63 | 0.64 ± 0.12 |
aMean ± SD for each compartment defined in Fig. 6(a) as measured from the full k-space data sets. SM = smooth vessel-wall muscle; W2 = surrounding tissue; L1 = lesion 1; L2 = lesion 2