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. 2016 Sep 12;4:95. doi: 10.3389/fped.2016.00095

Table 4.

Diffusion tensor imaging (DTI) values for artificially reared (AR) and sow-reared (SR) piglets.a

Experimental treatment
 P-value
AR SR Treatment Sex
Fractional anisotropyb
White matter from atlasc 0.3000 ± 0.0011 0.3084 ± 0.0019 0.0005 0.6173
White matter from DTId 0.2989 ± 0.0011 0.3091 ± 0.0019 <0.0001 0.4217
Corpus callosum 0.2766 ± 0.0034 0.2851 ± 0.0060 0.2253 0.3099
Internal capsule 0.3839 ± 0.0044 0.4123 ± 0.0076 0.0029 0.1462
Left cortex 0.2957 ± 0.0028 0.3106 ± 0.0050 0.0148 0.6764
Left hippocampus 0.2701 ± 0.0049 0.2784 ± 0.0072 0.2754 0.1063
Right cortex 0.2979 ± 0.0014 0.3084 ± 0.0023 0.0005 0.9841
Right hippocampus 0.2719 ± 0.0034 0.2734 ± 0.0060 0.8233 0.0862
Thalamus 0.3099 ± 0.0035 0.3204 ± 0.0053 0.0683 0.8425
Mean diffusivityb
White matter from atlas 1.046 ± 0.019 1.007 ± 0.020 0.0005 0.3526
White matter from DTI 1.008 ± 0.018 0.985 ± 0.02 0.0565 0.7453
Corpus callosum 1.247 ± 0.021 1.205 ± 0.038 0.3345 0.8696
Internal capsule 0.871 ± 0.004 0.870 ± 0.006 0.9798 0.4924
Left cortex 1.030 ± 0.018 0.988 ± 0.030 0.2231 0.3477
Left hippocampus 1.110 ± 0.046 1.088 ± 0.054 0.5886 0.5867
Right cortex 1.000 ± 0.015 0.980 ± 0.016 0.0497 0.9418
Right hippocampus 1.048 ± 0.024 1.082 ± 0.043 0.4883 0.0563
Thalamus 0.911 ± 0.011 0.919 ± 0.016 0.6433 0.1602
Axial diffusivityb
White matter from atlas 1.380 ± 0.022 1.339 ± 0.024 0.0005 0.2741
White matter from DTI 1.330 ± 0.021 1.313 ± 0.023 0.1901 0.8264
Corpus callosum 1.613 ± 0.031 1.566 ± 0.054 0.4594 0.8707
Internal capsule 1.250 ± 0.006 1.287 ± 0.011 0.0062 0.5208
Left cortex 1.354 ± 0.022 1.321 ± 0.034 0.3633 0.3737
Left hippocampus 1.435 ± 0.057 1.423 ± 0.068 0.8086 0.9655
Right cortex 1.318 ± 0.018 1.306 ± 0.019 0.2933 0.9194
Right hippocampus 1.361 ± 0.033 1.397 ± 0.058 0.5869 0.0326
Thalamus 1.222 ± 0.018 1.246 ± 0.026 0.3428 0.1686
Radial diffusivityb
White matter from atlas 0.879 ± 0.017 0.841 ± 0.019 0.0005 0.4111
White matter from DTI 0.847 ± 0.016 0.821 ± 0.018 0.0272 0.7058
Corpus callosum 1.064 ± 0.017 1.024 ± 0.030 0.2512 0.6493
Internal capsule 0.681 ± 0.005 0.662 ± 0.007 0.0226 0.1455
Left cortex 0.868 ± 0.017 0.822 ± 0.029 0.1678 0.3403
Left hippocampus 0.947 ± 0.041 0.921 ± 0.047 0.4526 0.3399
Right cortex 0.840 ± 0.014 0.817 ± 0.015 0.0159 0.9480
Right hippocampus 0.891 ± 0.021 0.926 ± 0.037 0.4098 0.1050
Thalamus 0.756 ± 0.007 0.755 ± 0.012 0.9731 0.1922

aValues are presented as means ± SEM. Experimental treatments include artificially reared (AR; male n = 14; female n = 14) and sow-reared (SR; male n = 5; female n = 4) groups.

bAbsolute values for fractional anisotropy are presented arbitrary units, while mean diffusivity, axial diffusivity, and radial diffusivity are presented as ×1000 mm2/s.

cWhite matter generated from atlas indicates the use of white matter prior probability maps generated from the Piglet Brain atlas were used as an region of interest mask.

dWhite matter generated from DTI indicates a threshold of 0.2 was applied to FA values, thus restricting analysis to white matter tracts.