Fig. 2.

Analysis spaces, transformation estimations and analysis pipelines for no distortion correction, B₀ field-mapping and reversed-PE distortion correction techniques using 3DEPI and whole-brain MT-3DEPI data. a) Uncorrected and corrected 3DEPI, MT-3DEPI and MP2RAGE spaces and the related transformations used in their processing pipelines. b) Each of the transformation estimations is presented in a separate module indicating input, output data and the related FSL commands. c) Flowcharts of the three pipelines along with their final applied transformations, transforming data from 3DEPI and MT-3DEPI spaces into MP2RAGE space. Note that the analysis code is publicly available on GitHub (https://github.com/fil-physics/Publication-Code/tree/master/3DEPI-DistortionCorrection).