Spectral analysis using non-negative least squares in a modified tri-exponential muti-b-value diffusion-weighted imaging(DWI) enables estimation of an intermediate component in the diffusion spectrum between parenchymal diffusion and microvascular pseudo-diffusion. Several studies have suggested the intermediate component to be with the glymphatic alterations in different disease state. The aim of this this study aims to investigate whether the modified tri-exponential model are effective in evaluating the grading and IDH-1 gene type of gliomas.
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