Diffusion kurtosis imaging (DKI) is an advanced neuroimaging modality which is an extension of diffusion tensor imaging by estimating the kurtosis of water diffusion probability distribution function . It provides high order diffusion of water distribution and analyses as well as quantifies the diffusion restriction . The kurtosis is general , dimensionless statistic for quantifying non-guassianity of any distribution . It also provides the biochemical environment of a neuronal tissue .
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