Table 3:

Comparison of DTI metrics between patients before surgery and the control group for the average of AC levels

Groups/Statistics	MD (10⁻³mm²/s)	AD (10⁻³mm²/s)	RD (10⁻³mm²/s)	FA
Patients (n = 55)	0.87 ± 0.12	1.40 ± 0.12	0.61 ± 0.14	0.50 ± 0.10
Controls (n = 20)	0.73 ± 0.03	1.31 ± 0.07	0.44 ± 0.03	0.61 ± 0.03
t/t' value	t' = −8.19	t = −3.15	t' = −8.36	t' = 7.10
P value	P < .001^{^a}	P < .001^{^a}	P < .001^{^a}	P < .001^{^a}