IDH1 and brain neoplasm: Previously, the assessment of ADC values in different parenchyma and brain tumor regions has also been considered, and for patients with IDH‐mutated tumors, ADC values were significantly higher in tumor tissue than in marginal areas of the tumor, while there were no significant differences in terms of ADC values between tumor tissue and marginal areas of the tumor for patients with IDH‐wild‐type tumors.75