Prepdwi Documentation¶

Prepdwi is a BIDS App developed by the Khan Lab to pre-process diffusion-weighted MRI data, and optionally also perform simple probabalistic tractography. Steps to generate a pre-processed DWI image include de-noising, unringing, EPI distortion correction (top-up, and if necessary non-linear image registration), eddy correction, gradient correction (requires coefficient file), and rigid registration to T1w. The app also generates FSL FDT dtifit maps, DKE kurtosis maps (for multi-shell DWI only), and FSL BEDPOST pre-processing.