Table 1.

DTI metrics from all volunteers tabluated by the root.

Level	Side	Mean (SD) DTI values derived from propagated tracts
		Fractional anisotropy	Mean diffusivity (× 10–3 mm2/s)	Axial diffusivity (× 10–3 mm2/s)	Radial diffusivity (× 10–3 mm2/s)
C5	Right	0.24 (0.07)	1.62 (0.58)	2.04 (0.64)	1.40 (0.56)
	Left	0.25 (0.07)	1.61 (0.59)	2.04 (0.65)	1.40 (0.57)
C6	Right	0.26 (0.08)	1.70 (0.61)	2.18 (0.69)	1.45 (0.58)
	Left	0.26 (0.08)	1.69 (0.60)	2.16 (0.68)	1.45 (0.58)
C7	Right	0.26 (0.09)	1.81 (0.57)	2.33 (0.67)	1.55 (0.54)
	Left	0.26 (0.09)	1.68 (0.54)	2.15 (0.64)	1.45 (0.50)
C8	Right	0.26 (0.10)	1.79 (0.48)	2.30 (0.57)	1.53 (0.46)
	Left	0.26 (0.09)	1.73 (0.50)	2.23 (0.62)	1.48 (0.46)
T1	Right	0.25 (0.11)	1.84 (0.55)	2.33 (0.60)	1.60 (0.56)
	Left	0.23 (0.09)	1.88 (0.55)	2.35 (0.63)	1.66 (0.53)
All roots	Right	0.26 (0.09)	1.74 (0.56)	2.23 (0.64)	1.50 (0.54)
	Left	0.25 (0.08)	1.72 (0.55)	2.19 (0.64)	1.48 (0.52)
Overall		0.25 (0.09)	1.73 (0.56)	2.21 (0.64)	1.49 (0.53)