Table 5.
Mean (standard deviation) values of fractional anisotropy (FA) in cortex and medulla for each cardiac phase (systolic or diastolic) and distortion correction method (M:multi-bin TOPUP, O:one-bin TOPUP, N: no correction). Statistical differences are labelled.
| Correction method | |||||
|---|---|---|---|---|---|
| Parameter | Tissue | Phase | M | O | N |
| FA | Cortex | Systolic | 0.22 (0.01)4 | 0.23 (0.02)4 | 0.23 (0.04)1,4 |
| Diastolic | 0.21 (0.04)3,4 | 0.20 (0.04)3,4 | 0.21 (0.04)1,4 | ||
| Medulla | Systolic | 0.33 (0.04)4 | 0.32 (0.05)4 | 0.34 (0.03)4 | |
| Diastolic | 0.33 (0.03)4 | 0.32 (0.05)4 | 0.34 (0.03)4 | ||
| MD | Cortex | Systolic | 2.01 (0.22)2 | 2.01 (0.21)2 | 2.06 (0.18)2 |
| Diastolic | 1.96 (0.20)2 | 1.96 (0.18)2 | 2.04 (0.10)2,4 | ||
| Medulla | Systolic | 1.94 (0.23) | 1.95 (0.24) | 1.98 (0.19) | |
| Diastolic | 1.92 (0.13) | 1.92 (0.14) | 1.93 (0.13)4 | ||
Significant difference between diastolic and systolic FA in case of no correction
Significant difference between MD of one and multi-bin correction vs. no correction for the cortex
Significant difference between diastolic FA of multi-bin vs. one bin for the cortex
Significant difference between cortex and medulla.