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. 2021 Dec 20;42(6):1020–1032. doi: 10.1177/0271678X211069228

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© The Author(s) 2021

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Test-retest repeatability of diffusion markers. (a) Scatterplots showing the consistency of diffusion markers illustrated using the first two visits (time points t1 and t2) for skeleton-based MD (top) and wFA structural brain networks (bottom) as examples. In case of perfect test-retest repeatability, all points would lie on the diagonal. (b) Intraclass correlation coefficients of diffusion markers assessed in the exploration and (c) validation sample.

AAL: automated anatomical labelling; BN: Brainnetome; FA: fractional anisotropy; ICC: intraclass correlation coefficient; invLen: number of streamlines weighted by the inverse length of each streamline; MD: mean diffusivity; mFA: mean of fractional anisotropy of streamlines; MK: mean kurtosis; mMK: mean of mean kurtosis of streamlines; mLen: mean length of streamlines; nSL: number of streamlines; RK: radial kurtosis; wFA: number of streamlines weighted by fractional anisotropy; wMK: number of streamlines weighted by mean kurtosis.