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Placement of region on interests (ROIs) on the apparent diffusion coefficient (ADC) map: (a) co-registration between T2-weighted and color-coded ADC map (blue: restricted diffusion; red: facilitated diffusion); (b) placement of five elliptical ROIs on parametric ADC map within the tumor. Co-registration allows identification of the different components of the tumor and peritumoral region. Scale bar: 5 cm.
