The differentiation of glioblastomas from solitary brain metastases by using routine magnetic resonance imaging (MRI) alone presents a challenge. As a representative of diffusion MRI technology, diffusion kurtosis imaging (DKI) can closely reflect the real situation of water molecule movement in tumor tissues. We speculate that DKI radiomics is superior to routine MRI radiomics in distinguishing GBMs from SBMs. We developed a series of radiomics models of DKI parameter maps and routine MRI to compare their performance. Finally, several independent parameters models perform well in distinguishing two tumors. The combined DKI radiomics model obtained the best performance.
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