Convert FreeSurfer outputs to a format that is compatible with BrainSuite using the BrainSuite Surface Importer (BSI) before importing FreeSurfer brain segmentation into BrainSuite. Check the FreeSurfer volume and surface orientations to make sure the data is aligned correctly. Use FreeSurfer’s mri_convert function to change the format if necessary. Good preprocessing is guaranteed by BrainSuite’s BSE tool.