Table 2.

Comparison of preoperative DTI quantitative values (x̅ ± sd)

Group	FA	ADC	AD	VD
Good recovery group (n = 47)	0.57±0.10	1.31±0.21	2.25±0.39	0.85±0.20
Poor recovery group (n = 48)	0.46±0.12	1.58±0.15	2.31±0.43	0.94±0.25
t/χ2	4.998	7.255	0.759	1.929
P	0.000	0.000	0.150	0.057

Note: DTI: diffusion tensor imaging; FA: fractional anisotropy; ADC: apparent diffusion coefficient; AD: longitudinal dispersion; VD: lateral dispersion.