Content: High resolution version of the ISMRM 2015 Tractography Challenge data (doi: 10.5281/zenodo.572345)
Version: 1.0
Archiving date: 2017-05-14
Created by: p.neher@dkfz-heidelberg.de

This archive contains the high resolution version of the ISMRM 2015 Tractography Challenge data. It features parameters similar to the datasets of the human connectome project (HCP) 3T data. 


Content of the archive:

- Diffusion.nii.gz: 
  The simulated diffusion-weighted images.
- Diffusion.bvals:
  The b-values file corresponding to Diffusion.nii.gz, saved in the FSL format.
- Diffusion.bvecs:
  The b-vectors file corresponding to Diffusion.nii.gz, saved in the FSL format.
  
- param.ffp:
  Parameter file for the Fiberfox simulation
- param.ffp_MASK.nrrd:
  Tissue mask file (Fiberfox simulation file)
- param.ffp_VOLUME1.nrrd:
  Volume fraction map of compartment 1 (Fiberfox simulation file)
- param.ffp_VOLUME2.nrrd:
  Volume fraction map of compartment 2 (Fiberfox simulation file)
- param.ffp_VOLUME3.nrrd:
  Volume fraction map of compartment 3 (Fiberfox simulation file)
- param.ffp_VOLUME4.nrrd:
  Volume fraction map of compartment 4 (Fiberfox simulation file)
- GroundTruthFibers.fib
  Ground truth fibers (Fiberfox simulation file)

The diffusion acquisition was simulated with the following basic parameters (details in param.ffp):
    - 18 unweighted images
    - 90 weighted images per b-value
    - b-values: 1000, 2000 and 3000 s/mm²
    - Image size: 145x174x145
    - Image spacing: 1.25 mm isotropic
    - The dataset is simulated without T1 relaxation
    
    
If you are using this dataset in your publications, please cite "Neher PF, Laun FB, Stieltjes B, Maier-Hein KH. Fiberfox: facilitating the creation of realistic white matter software phantoms. Magn Reson Med. 2014 Nov;72(5):1460–1470." as well as the reference of the dataset itself.