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Brain_Hawk t1_jeh46nf wrote

Reply to comment by Zealousideal-Alarm37 in If MRI Voxels are 1mm^3 how can MRIs identify something as thin as white matter? by Zealousideal-Alarm37

Dti does not measure axons.

It makes a model of white matter tracts based on the characteristics os the direction of diffusion. Like so many things MRI, it's a model, and an estimate of how large bundles of axons are organized and traverse through the WM.

If you wanna learn more I bet you can find some good videos on YouTube. :)

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