The beauty behind diffusion-tensor imaging (DTI) and tractography of the brain and spinal cord!This is a magnetic resonance imaging technique that provides details on tissue microstructure and organization well beyond the usual image resolution. It uses anisotropic diffusion to estimate the axonal (white matter) organisation of the brain, while fiber tractography is a 3D reconstruction technique to access neural tracts using data collected by DTI. Eventually, we end up with a beautiful real-time representation of brain mapping.