---
license: mit
pretty_name: MRtrix diffusion MRI tutorial data (NeurodeskEDU)
tags:
- neuroimaging
- diffusion-mri
- mrtrix3
- education
size_categories:
- n<1K
---

# MRtrix diffusion MRI tutorial data

Intermediate results used by the three-part [NeurodeskEDU](https://neurodesk.org/edu/) MRtrix series
(`examples/diffusion_imaging/MRtrix_1.ipynb` to `MRtrix_3.ipynb`), so that each part can start
without re-running the previous one.

This is a mirror of the OSF project [y2dq4](https://osf.io/y2dq4/). It was copied on 2026-10-07 because
OSF rate-limits (HTTP 429) the downloads made by the notebooks' automated test runs.

| Folder | Contents | Downloaded by |
| --- | --- | --- |
| `preprocessed/` | Part 1 outputs (denoised, preprocessed, bias-corrected DWI; mask; T1w; gradients) | Part 2 |
| `fod/` | Part 2 outputs (response-function FODs, 5TT image), plus some Part 3 outputs | Part 3 |
| `dti/`, `tractography/` | Further reference outputs (DTI metrics, track-density image) | none |

`manifest.json` lists each file's size and SHA-256 hash. The hashes match the ones OSF reports for the
original files.

## Source and citation

- Original data: Hannelore Aerts and Daniele Marinazzo (2018). BTC_preop.
  [OpenNeuro ds001226](https://openneuro.org/datasets/ds001226/versions/00001) (CC0).
- Processed data: Dörig, M. (2024, November 19). Diffusion MRI Analysis with MRtrix: An Interactive
  Three-Part Series on Neurodesk. [OSF](https://osf.io/y2dq4/). MIT License, © Neurodesk Organisation.