TABLE 4.

Group Differences on MD Using Quantitative FT DTI

Region	OI (N = 39)			TBI (N = 49)			t	p
	Mean	SD	Range	Mean	SD	Range
Genu of CC	0.847	0.043	.749–.919	0.9	0.067	.732–1.011	−3.95	0.0002
Body of CC	0.898	0.065	.761–1.058	0.951	0.111	.755–1.292	−2.42	0.0188
Right Temporal	0.857	0.055	.739–.977	0.9	0.078	.761–1.146	−2.5	0.0151
Left Temporal	0.835	0.057	.712–.974	0.869	0.057	.752–1.015	−2.31	0.0241
Right Uncinate	0.807	0.044	.713–.885	0.846	0.063	.706–1.005	−2.79	0.007
Left Uncinate	0.82	0.055	.707–.953	0.848	0.058	.720–1.015	−1.83	0.0726
Right Frontal	0.821	0.045	.701–.899	0.855	0.056	.725–.983	−2.79	0.0069
Left Frontal	0.816	0.043	.722–.902	0.849	0.049	.727–.925	−3	0.0038
Right mPFWM	0.83	0.053	.707–.923	0.863	0.063	.716–1.020	−2.28	0.0261
Left mPFWM	0.826	0.053	.717–.944	0.856	0.049	.739–.937	−2.38	0.0201
Right Dorsolateral Frontal	0.813	0.46	.696–.886	0.847	0.056	.731–.990	−2.7	0.0088
Left Dorsolateral Frontal	0.81	0.045	.722–.890	0.838	0.045	.723–.909	−2.47	0.0161
Right Cingulum Bundle	0.765	0.045	.655–.821	0.777	0.052	.657–.894	−1	0.3205
Left Cingulum Bundle	0.765	0.042	.668–.844	0.78	0.05	.656–.867	−1.3	0.1966
Right ILF	0.823	0.052	.704–.919	0.849	0.052	.730–1.010	−1.98	0.0519
Left ILF	0.813	0.051	.710–.901	0.858	0.061	.734–.988	−3.13	0.0027

FT = fiber tractography. DTI = diffusion tensor imaging. MD = mean diffusivity. OI = orthopedically injured. TBI = traumatic brain injury. SD = standard deviation. CC = corpus callosum. mPFWM = medial prefrontal white matter. ILF = inferior longitudinal fasciculus.