April 28, 2025Open Access

Evaluation of diffusion time–dependent changes in radial diffusivity as a surrogate for axon diameter

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Abstract

PURPOSE: ) as a simple estimate of axon diameter. METHODS: and quantitative MRI myelin metrics. RESULTS: . CONCLUSION: is shown to be a good estimate of axon size in ex vivo spinal cords regardless of variations in myelin content, as indicated by quantitative MRI.

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Alderson et al. (Mon,) studied this question.

synapsesocial.com/papers/6a01f9dd0cec8eebbd5cb9e0 https://doi.org/https://doi.org/10.1002/mrm.30538

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