Multimodal PET/MRI Imaging Results Enable Monitoring the Side Effects of Radiation Therapy

Figure 5

The effect of irradiation on the brain K₁ values. The mean K₁ values of the left (irradiated) brain regions (Ctx: cortex; Hc: hippocampus; Hth: hypothalamus; Th: thalamus) are shown at five different time points by 5 Gy (a) and 20 Gy (b) dose groups. The boxplots show median with quartiles, minimum, and maximum. The correlation maps of the K₁ values of the left versus right brain areas (regardless of the time points) by 5 Gy are presented in (c) and for 20 Gy dose groups in (d). The heat maps visualize the Pearson correlation of irradiation effects between each investigated brain region.

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