Department of Radiology, MGH Martinos Center , Harvard Medical School ​ Diffusion spectrum imaging ( DSI ) is a variant of magnetic resonance imaging (MRI) in which a magnetic field maps the water contained in neuron fibers, thus mapping their criss-crossing patterns. A similar technique called diffusion tensor imaging (DTI) is also used to explore...

NHS | UK ​ A computerised tomography (CT) scan uses X-rays and a computer to create detailed images of the inside of the body. ​ CT scans are sometimes referred to as CAT scans or computed tomography scans. They're carried out in hospital by specially trained operators called radiographers, and can be done while you're staying in hospital or during...