Fig. 3
From: Multi-modal imaging of tumor cellularity and Tryptophan metabolism in human Gliomas
Scatter plots of the IDSI-derived cellularity compared with Y(tumor/cortex ratio of AMT-SUV) and DWI-ADC values obtained from AMT-PET-derived tumor regions of five patients with grade IV gliomas (a), four patients with grade II gliomas (b). Pt. 10 excluded from grade IV glioma since no tumor/cortex ratio was found above the threshold of 1.36 (Y ≥ 1.36). Each plot represents an individual voxel for which DWI-ADC and Y(AMT-SUV ratio) are plotted on the x- and y-axes, while cellularity values are indicated by color. Note that increased cellularity tends to occur in voxels with low ADC values for all grade IV glioma cases, and also that there were no voxels with increased cellularity in the grade II gliomas