The special m.r.i. technique , known as diffusion tensor imaging , is also being studied to help improve the diagnosis of concussions .
这种特殊形式的核磁共振成像技术被称为弥散张量成像，对这种技术的也用来提高诊断脑震荡的精确度。
The information used to build it comes from the analysis of two human brains , using magnetic resonance imaging ( mri ) and a variation of mri called diffusion tensor imaging .
" The auditory area of her brain started taking over the somatosensory area , " says ro , who used diffusion tensor imaging , which focuses on the brain 's white matter connections , to spot the change .
Mri scans , computed tomography ( ct ) scans and diffusion tensor images ( dti ) use the magnetic signatures of different tissues , x-ray absorption , or the movement of water molecules in those tissues , to image the brain .
