Descriptive statistics of FA values (×103) (SD), as well as results of the performed t test (P) in the examined anatomic structures on the basis of 2 b-values (mm2/s) and both scanning sessions.
| Anatomic Structure | b-Value | Session 1 | Session 2 |
|---|---|---|---|
| Right internal capsule anterior limb | 1000 | 691 (71) | 672 (54) |
| 700 | 702 (63) | 718 (60) | |
| Right internal capsule genu | 1000 | 702 (51)* | 737 (48) |
| P = .02 | 700 | 745 (67)* | 760 (51) |
| Right internal capsule posterior limb | 1000 | 745 (33) | 732 (45) |
| 700 | 761 (54) | 751 (37) | |
| Corpus callosum genu | 1000 | 782 (71) | 816 (64) |
| 700 | 769 (74) | 782 (70) | |
| Corpus callosum splenium | 1000 | 823 (71) | 836 (69) |
| 700 | 829 (53) | 851 (47) | |
| Left internal capsule anterior limb | 1000 | 617 (81)* | 682 (65) |
| Left internal capsule genu | 1000 | 729 (53) | 746 (65) |
| 700 | 741 (44) | 752 (57) | |
| Left internal capsule posterior limb | 1000 | 766 (51) | 745 (55) |
| 700 | 781 (53) | 767 (65) | |
| Right corticospinal tract | 1000 | 646 (67)† | 570 (54)† |
| P = .048 | 700 | 661 (54) | 631 (60) |
| Left corticospinal tract | 1000 | 672 (73) | 649 (61) |
| 700 | 662 (91) | 672 (72) | |
| Right thalamus | 1000 | 349 (36)† | 316 (24)† |
| P = .024 | 700 | 358 (41) | 340 (39) |
Note:—The values are based on the readings of the first rater.
* Statistically significant changes in the obtained FA between the 2 b-values are shown.
† Statistically significant changes in the obtained FA between the 2 scanning sessions are shown.