Table 4.
Effect of Different Motion-Compensation Strategies on Percentage of Pixels With Normala T2 (%T2Normal)
| Percentage of pixels with normal T2 in SAX | Percentage of pixels with normal T2 in HLA | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volunteer | None | BH | REG | NAV | NAV + REG | None | BH | REG | NAV | NAV + REG |
| 1 | 42.9 | 94.3 | 86.7 | 83.6 | 78.3 | 61.1 | 94.9 | 98.8 | 80.4 | 93.0 |
| 2 | 74.2 | 96.4 | 100.0 | 95.8 | 100.0 | 47.7 | 94.5 | 91.2 | 72.8 | 92.0 |
| 3 | 42.7 | 94.6 | 85.5 | 85.3 | 88.1 | 58.7 | 94.7 | 88.8 | 95.3 | 93.2 |
| 4 | 57.4 | 94.7 | 79.1 | 73.4 | 84.4 | 73.7 | 95.0 | 83.9 | 85.9 | 95.3 |
| 5 | 66.8 | 94.4 | 99.7 | 92.4 | 96.5 | 81.6 | 95.5 | 91.8 | 87.3 | 97.8 |
| 6 | 48.0 | 94.7 | 94.6 | 78.4 | 92.9 | 51.0 | 95.3 | 86.9 | 83.6 | 86.0 |
| 7 | 80.6 | 94.4 | 100.0 | 99.7 | 100.0 | 59.6 | 95.5 | 94.8 | 84.7 | 91.2 |
| 8 | 49.4 | 95.7 | 91.4 | 80.6 | 91.6 | 63.7 | 93.5 | 79.0 | 86.3 | 93.1 |
| 9 | 77.2 | 95.2 | 93.8 | 90.3 | 97.5 | 75.8 | 95.4 | 89.3 | 90.2 | 91.7 |
| 10 | 61.5 | 95.0 | 95.5 | 84.6 | 87.3 | 62.2 | 93.6 | 88.0 | 90.7 | 93.3 |
| Medianb | 60.1 | 94.8 | 93.2 | 86.5 | 92.2 | 62.3 | 94.9 | 89.3 | 86 | 92.7 |
BH, breath-hold; REG, registration; NAV, navigator.
a
Normal T2 was defined as the range of values within two SDs of mean T2 in the breath-hold acquisition
b
Values represent estimate of median (Hodges–Lehmann estimate), computed in Wilcoxon signed rank test.