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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: NMR Biomed. 2018 Oct 15;32(4):e3998. doi: 10.1002/nbm.3998

FIG. 4. Models are pictures….

FIG. 4.

Here they are drawn with coarse-graining occurring, roughly, from left to right. References: Mitra 1993 [32], universal short-t limit; Novikov 2014 [33], universal long-t behavior; Burcaw 2015 [23] and Fieremans 2016 [34], long-t behavior transverse and along WM fibers; Tanner 1978 [49], Powles 1992 [50], Sukstanskii 2004 [35], periodic 1-dimensional lattice; Novikov 2011 [51], random permeable barriers in any dimension, and its application to myofibers (Sigmund 2014 [52] and Fieremans 2016 [53]); Callaghan 1979 [54], first model of diffusion inside random narrow cylinders; Yablonskiy 2002 [55], diffusion in finite-diameter cylinders modeling lung alveoli; Stanisz 1997 [56], first model for WM fiber tracts made of ellipsoids; Assaf 2004 [57], CHARMED; Assaf 2008 [58], AxCaliber; Alexander 2010 [59], ActiveAx; Kroenke 2004 [36], NAA diffusion inside neurites. The widely adopted t → ∞ picture of narrow “sticks” for the neurites, embeded in the extra-neurite space (the Standard Model): Jespersen 2007 [37], Jespersen 2010 [38], Fieremans 2010 [39], Fieremans 2011 (WMTI) [40], Sotiropoulos 2012 (Ball and rackets) [41], Zhang 2012 (NODDI) [42], Reisert 2014 (MesoFT) [43], Jelescu 2016 (NODDIDA) [44], Reisert 2017 [45], Veraart 2017 (TEdDI) [48], Novikov 2018 (LEMONADE [46], RotInv [47]).