Table 2.
Percent differences in FA, MD, RD, and AD between the test-retest scans of 25 TD children. Differences are expressed as 100 · (xTD2 − xTD1)/xTD1, where xTD1 and xTD2 are the measures for the scans with less and more motion, respectively. Results are shown for the three pathways that showed statistically significant changes in FA (FMAJ, L-CCG, R-CCG). The columns show average (μ), standard error (∊), and p-value from a paired T-test on the difference between the lower-motion and higher-motion scans.
| FMAJ | L-CCG | R-CCG | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| μ ± ∊ | p | μ ± ∊ | p | μ ± ∊ | p | |
| FA | −4.9 ± 0.4 | 0.01 | −5.5 ± 0.5 | 0.02 | −5.1 ± 0.5 | 0.03 |
| MD | 0.1 ± 0.3 | 0.99 | 0.9 ± 0.2 | 0.38 | 1.1 ± 0.2 | 0.41 |
| RD | 8.1 ± 0.7 | 0.03 | 5.3 ± 0.4 | 0.03 | 4.6 ± 0.5 | 0.09 |
| AD | −3.6 ± 0.7 | 0.03 | −2.4 ± 0.2 | 0.03 | −1.7 ± 0.2 | 0.10 |