Table 2.
Global fractional anisotropy (FA) values measured with the three different methods in acute or sub-acute mild traumatic brain injury (mTBI defined as GCS ≥ 13, GCS ≥ 13 and post traumatic amnesia (PTA) ≤ 24 h, GCS ≥ 13 and PTA > 24 h) vs controls. Age and white matter hyperintensities (measured by Fazekas scale) were used as covariates.
| Study group | FA skeleton, single-fiber only |
FA skeleton |
FA tractogram |
|||
|---|---|---|---|---|---|---|
| mean ± SD | F-value (p-value) |
mean ± SD | F-value (p-value) |
mean ± SD | F-value (p-value) |
|
| All mTBI (GCS ≥ 13) | 0.576 ± 0.042 | 9.917 | 0.412 ± 0.025 | 4.606 | 0.521 ± 0.047 | 6.764 |
| Controls | 0.591 ± 0.034 | 0.002 | 0.419 ± 0.021 | 0.034 | 0.534 ± 0.043 | 0.010 |
| mTBI (GCS ≥ 13 & PTA ≤ 24 h) | 0.582 ± 0.040 | 7.808 | 0.416 ± 0.022 | 3.195 | 0.527 ± 0.048 | 4.806 |
| Controls | 0.591 ± 0.034 | 0.006 | 0.419 ± 0.021 | 0.077 | 0.534 ± 0.043 | 0.031 |
| mTBI (GCS ≥ 13 & PTA > 24 h) | 0.556 ± 0.042 | 9.497 | 0.399 ± 0.030 | 5.954 | 0.501 ± 0.040 | 6.565 |
| Controls | 0.591 ± 0.034 | 0.003 | 0.419 ± 021 | 0.018 | 0.534 ± 0.043 | 0.013 |