Table 3:

DTI and fiber tracking characteristics of the corpus callosum in control subjects and patients mild TBI who were investigated <3 or ≥3 months posttrauma^*

	Control Subjects (n = 10)	Mild TBI <3 Months Posttrauma (n = 12)	Mild TBI ≥3 Months Posttrauma (n = 12)
Genu
FA	0.74 (0.70–0.78)	0.63 (0.58–0.67)†‡	0.70 (0.66–0.73)
ADC (mm2/s)	2.43 (2.27–2.59)	2.73 (2.55–2.92)§	2.53 (2.40–2.66)
Fibers (No.)	495 (442–548)	522 (458–586)	460 (407–514)
Body
FA	0.54 (0.49–0.59)	0.50 (0.43–0.57)	0.51 (0.47–0.56)
ADC (mm2/s)	2.71 (2.25–3.18)	2.77 (2.46–3.08)	2.65 (2.34–2.96)
Fibers (No.)	254 (221–288)	218 (179–257)	225 (197–253)
Splenium
FA	0.82 (0.79–0.85)	0.78 (0.74–0.82)	0.80 (0.78–0.82)
ADC (mm2/s)	2.24 (2.11–2.37)	2.43 (2.25–2.61)	2.34 (2.24–2.45)
Fibers (No.)	937 (815–1058)	877 (761–994)	1032 (937–1128)

Note:—DTI indicates diffusion tensor imging; TBI, traumatic brain injury; FA, fractional anisotropy; ADC, apparent diffusion coefficient.

^*Values are given as mean (95% confidence interval).

^†P < .01, versus control subjects.

^‡P < .05, versus late mild TBI.

^§P < .05.