Extrapolation-Based References Improve Motion and Eddy-Current Correction of High B-Value DWI Data: Application in Parkinson’s Disease Dementia
Fig 7
Histograms of DKI and DTI parameters in white matter.
The lines represent the conventional correction method (red), extrapolation-based method using the CSF-corrected approach for extrapolation (blue), and the extrapolation-based method using CHARMED for extrapolation (green). With the conventional approach, there was a clear negative bias in the mean kurtosis, MW, but also a large fraction of approximately 10% of all voxels where FA was equal to one (spike not shown in histogram).