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Diffusion Tensor Imaging– what is it? New form of MRI scanning that is as yet poorly defined

mri image by kalhh courtesy of

Read this article, “An introduction to diffusion tensor image analysis”, to get an idea of just what “diffusion tensor imaging” is, but be prepared for abstruseness. Yesterday I posted about the brain effects of COVID-19, and a paper came up that talked about changes on DTI. Unfortunately, the changes are ill-defined and the field of DTI is new and not well established.

I cited this article but reading it didn’t really clarify just what DTI is– it only made it clear that the changes one finds don’t correspond to clear pathological changes in the brain. The technique works well in squid axons, but that’s not what we’re interested in right now.

So, just to clarify, it’s just not clear.

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