Mean DTI parameters across all 13 scanners and their CoV
| FA | CoV%a | CoV%b | MD | CoV%a | CoV%b | AD | CoV%a | CoV%b | RD | CoV%a | CoV%b | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Global | 0.41 | 4.16 | NA | 0.73 | 2.44 | NA | 1.08 | 3.41 | NA | 0.55 | 2.57 | NA |
| SLFl | 0.44 | 2.64 | 3.93 | 0.70 | 4.14 | 2.34 | 1.06 | 4.04 | 1.51 | 0.52 | 4.66 | 3.75 |
| SLFr | 0.43 | 3.38 | 2.44 | 0.71 | 2.56 | 0.99 | 1.07 | 3.38 | 1.07 | 0.53 | 2.60 | 1.68 |
| SFOl | 0.46 | 3.60 | 4.47 | 0.65 | 4.68 | 3.30 | 1.00 | 3.94 | 2.56 | 0.47 | 5.86 | 4.80 |
| SFOr | 0.45 | 4.72 | 4.22 | 0.67 | 4.94 | 3.62 | 1.03 | 4.82 | 2.55 | 0.50 | 5.90 | 5.19 |
| CSTl | 0.56 | 5.18 | 2.36 | 0.69 | 6.95 | 6.10 | 1.16 | 7.10 | 6.20 | 0.45 | 8.67 | 7.04 |
| CSTr | 0.58 | 5.39 | 3.22 | 0.67 | 6.61 | 5.71 | 1.14 | 6.61 | 5.37 | 0.43 | 8.97 | 7.46 |
| CINGl | 0.54 | 4.35 | 3.47 | 0.72 | 3.57 | 1.95 | 1.21 | 3.28 | 1.93 | 0.48 | 5.68 | 3.85 |
| CINGr | 0.50 | 4.42 | 2.69 | 0.74 | 3.77 | 1.66 | 1.20 | 4.43 | 1.79 | 0.51 | 4.39 | 2.65 |
| GenuCC | 0.67 | 5.29 | 3.52 | 0.76 | 4.04 | 4.45 | 1.47 | 3.10 | 1.99 | 0.41 | 10.11 | 9.82 |
| BodyCC | 0.66 | 2.60 | 3.32 | 0.82 | 3.05 | 1.97 | 1.56 | 2.66 | 1.97 | 0.44 | 5.41 | 4.18 |
| SpleniumCC | 0.74 | 2.56 | 2.20 | 0.70 | 3.11 | 2.26 | 1.44 | 2.76 | 1.68 | 0.32 | 7.30 | 5.81 |
| ACRl | 0.45 | 5.10 | 2.84 | 0.73 | 2.88 | 2.17 | 1.13 | 3.40 | 1.63 | 0.53 | 4.00 | 3.15 |
| ACRr | 0.44 | 5.22 | 3.15 | 0.72 | 4.09 | 3.05 | 1.13 | 4.75 | 2.39 | 0.52 | 4.56 | 3.93 |
| PCRl | 0.46 | 2.18 | 3.94 | 0.74 | 3.64 | 1.89 | 1.15 | 3.38 | 1.45 | 0.54 | 4.22 | 3.17 |
| PCRr | 0.46 | 2.86 | 2.30 | 0.74 | 2.82 | 1.64 | 1.13 | 2.83 | 1.99 | 0.54 | 3.49 | 1.79 |
| ALICl | 0.55 | 4.84 | 2.49 | 0.70 | 3.75 | 2.42 | 1.19 | 4.91 | 2.10 | 0.45 | 5.05 | 3.88 |
| ALICr | 0.54 | 6.22 | 3.10 | 0.71 | 3.63 | 2.35 | 1.20 | 4.85 | 2.22 | 0.46 | 5.55 | 4.09 |
| PLICl | 0.66 | 2.99 | 4.05 | 0.65 | 6.23 | 4.47 | 1.24 | 6.16 | 3.36 | 0.36 | 4.38 | 3.42 |
| PLICr | 0.64 | 3.78 | 3.54 | 0.67 | 4.38 | 2.78 | 1.25 | 4.44 | 1.84 | 0.38 | 6.95 | 5.67 |
| PTRl | 0.55 | 2.13 | 3.26 | 0.80 | 4.40 | 2.65 | 1.36 | 4.78 | 2.16 | 0.52 | 4.37 | 3.38 |
| PTRr | 0.52 | 3.08 | 1.96 | 0.78 | 3.42 | 1.31 | 1.29 | 3.96 | 1.01 | 0.52 | 3.76 | 1.97 |
| ECl | 0.38 | 7.31 | 4.06 | 0.76 | 2.77 | 1.89 | 1.10 | 3.67 | 1.22 | 0.60 | 3.77 | 2.78 |
| ECr | 0.37 | 7.75 | 4.12 | 0.78 | 2.73 | 1.39 | 1.11 | 4.20 | 1.55 | 0.62 | 3.20 | 1.77 |
| UNCl | 0.42 | 7.66 | 6.05 | 0.77 | 5.66 | 4.90 | 1.14 | 6.00 | 4.27 | 0.58 | 7.03 | 6.55 |
| UNCr | 0.43 | 5.57 | 2.94 | 0.75 | 5.97 | 5.00 | 1.14 | 6.60 | 4.84 | 0.56 | 6.29 | 5.43 |
Note:—r indicates right; l, left; SLF, superior longitudinal fasciculus; SFO, superior fronto-occipital fasciculus; CST, corticospinal tract; CC, corpus callosum; CING, cingulum corticospinal tract; ACR, anterior corona radiata; PCR, posterior corona radiata; PLIC, posterior limb of internal capsule; ALIC, anterior limb of internal capsule; PTR, posterior thalamic radiation; EC, external capsule; UNC, uncinate fasciculus; NA, not applicable.
↵a CoV across sites.
↵b CoV across sites normalized by the mean FA.