Hello! Is it possible to make a coronal reconstruction of the 3D MRI data set and save it a volume? I did only find the option to display the coronal view of my data set without the possibility to save the viewed display.

Thank you very much in advance

fes

MRIcroGL and other visualization tools will consistently view data as axial, coronal or sagittal slices regardless of the order that rows, columns and slices are saved to disk. Indeed, there are 48 unique combinations:
 https://github.com/rordenlab/NIfTIspace
It does this by reading the NIfTI s-form transform to transform the disk based column, row, slice (ijk) to the world-based left-right, posterior-anterior, inferior-superior (xyz) coordinates. 
  https://brainder.org/2012/09/23/the-nifti-file-format/
Because of this, it does not save your data reformatted to disk.