Table 2. The R2* values (1/sec) in the four WM regions in eight periods (Mean ± SD, n = 56).
| group | M/n | ALIC | PLIC | GCC | SCC |
| 37≤PMA<41 | 2/6 | 6.70±0.51 | 7.78±0.80 | 6.16±0.91 | 7.11±064 |
| 41≤PMA<46 | 7/13 | 7.08±1.04 | 7.89±1.28 | 5.38±1.10 | 7.06±1.97 |
| 46≤PMA<51 | 8/11 | 8.23±1.23 | 9.18±0.90 | 6.59±1.03 | 7.43±1.43 |
| 51≤PMA<56 | 4/6 | 8.51±1.01 | 9.84±1.07 | 6.44±1.20 | 7.60±0.71 |
| 56≤PMA<61 | 4/5 | 9.34±2.80 | 10.47±1.50 | 7.86±0.82 | 7.65±0.62 |
| 61≤PMA<66 | 5/6 | 8.66±1.74 | 10.67±1.36 | 8.24±1.72 | 9.16±0.97 |
| 66≤PMA<76 | 2/3 | 10.90±0.70 | 12.03±022 | 9.83±1.77 | 9.57±2.33 |
| 76≤PMA<91 | 4/6 | 12.34±1.30 | 11.86±0.62 | 11.26±1.43 | 12.31±2.10 |
Note: Infants were divided into eight groups according to the postmenstrual age (PMA).
M: male; ALIC: anterior limb of the internal capsule; PLIC: posterior limb of the internal capsule; GCC: genu of the corpus callosum; SCC: splenium of the corpus callosum.