Table 1:

Intrarater, scan-rescan, and inter-rater variability of FA measurements along the CST

Mean of All PositionsInter-Rater Variability at Different Positions along the CST
IntraraterScan-RescanInter-rater1234
CV2.4%3.0%5.7%4.5%4.6%7.9%6.0%
Mean value of abs. differences0.0160.0200.0340.0280.0300.0510.030
FAmean0.670.660.6020.6190.6580.6420.492
• Note:—FA indicates fractional anisotropy; CST, corticospinal tract; CV, coefficient of variation defined as mean value of absolute differences divided by FAmean; FAmean, mean value of FA measurements of the respective variability assessment. See Fig 1 for definition of positions 1 to 4.