The Powder Averaging Dataset

Welcome to the data package used in Andersson et al. 2021!

This data package includes a synchrotron X-ray Nano-Holotomography volume from a sample taken from a crossing fibre region of a 32-month old vervet monkey, as well as the corresponding segmentations of axons, as presented in the article. Additionally, we share the scripts used to estimate diameter from diffusion Magnetic Resonance Imaging (MRI) signals simulated using Monte Carlo Simulations of diffusion within the segmented axons.

In the different directories, the user will find "README.html" files further explaining the data and its details.

Please enjoy, and make sure to cite the manuscript if using the data.

Mariam Andersson, Marco Pizzolato, Hans Martin Kjer, Katrine Forum Skodborg, Henrik Lundell, Tim B. Dyrby, Does powder averaging remove dispersion bias in diffusion MRI diameter estimates within real 3D axonal architectures?, NeuroImage, 2021, 118718, ISSN 1053-8119,

Further details can be found in the "Methods" section of the manuscript. In case of questions, please contact one of the corresponding authors, and we will be happy to assist you.

Corresponding authors: Mariam Andersson (mariama@drcmr.dk) and Tim B. Dyrby (timd@drcmr.dk) Copenhagen, December 2021