MRI stands for Magnetic Resonance Imaging, which can denerate information about any organ of the body. Brain MRI can generate different kind of information depending on the protocol used. The most commonly reported information pertains to gross brain structure: Is there cortical atrophy? Are the ventricles abnormally dilated? Is there focal damage? Is there distributed small vessel disease? Other protocols (like Diffusion Tensor Imaging, DTI) can generate information about the condition of the white matter in the brain. MRI should be distinguished frm functional MRI (fMRI) which generates information about brain physiology rather than brain structure.
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