Cyril, If you're simply looking to convert the CTF .mri files into ANALYZE or Nifti, the older versions of CTF's MRIViewer (4.16 or earlier) do this directly. Leighton Hinkley > Hi there, > > I have MRI data that were saved in ctf format, then worked with > fieldtrip to get sources from the MEG in the same space. > Does anyone have an idea how I can write those matrices into niftii or > old fashion analyze? > > cheers > cyril > ----------------------------------------------------------------- ------------ Leighton B.N. Hinkley [log in to unmask] Center for Neuroscience / Department of Psychology University of California, Davis 1544 Newton Court Davis, CA 95616 (530) 754-5022 lab (530) 757-8827 fax ----------------------------------------------------------------- ------------