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. 2016 Sep 14;12:615–623. doi: 10.1016/j.nicl.2016.09.010

Fig. 2.

Fig. 2

a DTI images from a PPMS subject. The four DTI measures are shown for a PPMS subject. The top row shows the acquired DTI, the middle row shows the statistical DTI, and the bottom row shows the abso-lute value of the difference between the acquired and statistical DTI. The models for MD and RD perform relatively well, while the models for AD and FA appear to fail. 2b DTI images from a SPMS subject. The four DTI measures are shown for a SPMS subject. The top row shows the acquired DTI, the middle row shows the statistical DTI, and the bottom row shows the absolute value of the difference between the acquired and statistical DTI. The models for MD and RD perform relatively well, while the models for AD and FA appear to fail.