Table 1.

Quantitative DTI parameters with standard deviation from whole tissue and from tractography.

Whole tissue parameters				Tractography parameters
Sample	FA	MD (× 10–3 mm2/s)	SNR	Axial inclination angle (°)	Mean length (mm)	Mean fiber tracts FA	Mean fiber tracts MD
1	0.12 ± 0.01	0.5 ± 0.1	44	34	10 ± 7	0.4 ± 0.1	1.4 ± 0.3
2	0.27 ± 0.03	1.9 ± 0.1	20	37	4.6 ± 2.5	0.34 ± 0.1	1.3 ± 0.2
3	0.21 ± 0.04	1.1 ± 0.2	40	39	8 ± 5	0.39 ± 0.1	1.4 ± 0.2
4	0.32 ± 0.03	1.2 ± 0.2	36	27	7 ± 5	0.41 ± 0.1	1 ± 0.1
5	0.27 ± 0.03	1.5 ± 0.1	38	37	4 ± 2	0.43 ± 0.1	1.2 ± 0.2
6	0.21 ± 0.03	1.6 ± 0.1	28	34	6 ± 2	0.37 ± 0.1	1.2 ± 0.2
7	0.15 ± 0.02	0.9 ± 0.3	30	31	9 ± 7	0.26 ± 0.1	1.3 ± 0.2
8	0.33 ± 0.03	1.7 ± 0.1	35	34	6 ± 4	0.42 ± 0.1	1.3 ± 0.2
Mean	0.24 ± 0.03	1.3 ± 0.15	34 ± 8	34 ± 3.6	6.9 ± 4.4	0.38 ± 0.06	1.26 ± 0.4

In italics, mean parameters extracted from tractography of whole samples, with standard deviations shown when applicable.