Data from: Data for evaluation of fast kurtosis imaging, b-value optimization and exploration of diffusion MRI contrast

Here we describe and provide diffusion magnetic resonance imaging (dMRI) data that was acquired in neural tissue and a physical phantom. Data acquired in biological tissue includes: fixed rat brain (acquired at 9.4T) and spinal cord (acquired at 16.4T) and in normal human brain (acquired at 3T). This data was recently used for evaluation of diffusion kurtosis imaging (DKI) contrasts and for comparison to diffusion tensor imaging (DTI) parameter contrast. The data has also been used to optimize b-values for ex vivo and in vivo fast kurtosis imaging. The remaining data was obtained in a physical phantom with three orthogonal fiber orientations (fresh asparagus stems) for exploration of the kurtosis fractional anisotropy. However, the data may have broader interest and, collectively, may form the basis for image contrast exploration and simulations based on a wide range of dMRI analysis strategies.Diffusion MRI data from a physical phantom with three orthogonal fiber directions. Data was acquired at 9.4T.This zip file contains raw dMRI data in a matlab (.mat) file (phantom_data), corresponding b-values (effective_b), gradient table (DWI_encoding_directions), and structural scan (structural_data). The data is also included as dicom and nifti.Phantom_data.zipDiffusion MRI data from fixed rat brain acquired at 9.4T.The data is provided as nifti files. The data is also provided as a matlab file which contains raw dMRI data (rat_brain_data), corresponding b-values (nominal_bvalues and effective_b, the latter includes b-value contributions from imaging gradients) and gradient table (DWI_encoding_directions_pr_b_value).Rat_brain.zipHigh resolution diffusion MRI data from fixed rat spinal cord acquired at 16.4T.This matlab file contains raw dMRI data (ratSC_DWI_data), corresponding effective b-values (effective_b) and gradient table (DWI_encoding_directions), and masks for all slices (masks). The data is also provided as nifti.Rat_spinal_cord.zipHuman_brainThis matlab file contains raw dMRI data (human_brain_data), corresponding b-values (effective_b), and gradient table (DWI_encoding_directions), and an anatomical scan (T1_anat). The DWI data is also included as dicom and nifti. The anatomical scans are provided as nifti only and were defaced using SPM12