Hi, FSLview is compatible with the vtk surface format (POLYDATA). It cannot load structured grids (image data). Depending on your C++ aptitude, it should be pretty straight forward to write a VTK to NIFTI converter using the VTK and FSL libraries. I could give you an example of converting the other way. Cheers, Brian > Dear all, > > I have a quick question whether you know if fsl can load VTK file formats? > I > have ASL dataset in VTK format and can’t load it into matlab? Is there a > way > to convert it? I used fslviewer but couldn’t load it. > > Thank you very much for your help. > > Samira > >