Implementing FielMap correction with magnitude and phase files already converted to .nii

 

Dear Forum,

I preprocess fMRI data which has been converted to .nii format. I wonder how I could use FieldMap correction when the magnitude and phase1 phase2 images are in .nii. The toolbox seems to read only dcm files for this particular step. I unsuccesfully tried out the following data structure:  

Well, you name them as *Img should work.