This Instructable informs us how to convert MRI scans of cancerous growths into 3D CAD models that can be 3D printed. One new use for these prints is to shoot radiotherapy at the model; the beam's focus helps people examine peripheral damage -- thus improving cancer treatment. There are thirteen steps in this process, and all are listed in here in this Instructable that takes 3D modeling to a new level in the fight against cancer by improving treatment. Check out the details at http://3dprint.com/107778/instructable-mri-scans/ ‎