Before starting this tutorial ############################# #. Make sure that you have the following files in your working directory: * ``single_subject/data/mt/mt1.nii.gz``: A magnetization transfer image with the off-resonance RF pulse applied. * ``single_subject/data/mt/mtr.nii.gz``: An image containing the voxel-wise magnetization transfer ratio. * ``single_subject/data/mt/warp_template2mt.nii.gz`` : The 4D warping field that defines the transform from the template image to the MT image. You can get these files by downloading :sct_tutorial_data:`data_atlas-based-analysis.zip`. .. note:: If you would like to learn how to compute the magnetization transfer ratio (``mtr.nii.gz``), please visit the following tutorial: * :ref:`mtr-computation` Additionally, if you would like to learn how to register MT data with the PAM50 template (which is how the ``warp_template2mt.nii.gz`` file was generated), please visit either of the following tutorials: * :ref:`registering-additional-contrasts` * :ref:`gm-informed-mt-registration` #. Open a terminal and navigate to the ``single_subject/data/mt/`` directory: .. code:: sh cd {PATH_TO_DOWNLOADED_DATA}/single_subject/data/mt/