Colorectal cancer: Parametric evaluation of morphological, functional and molecular tomographic imaging

Figure 1 Schematic representation of water molecule diffusion (dots) in the extracellular space. Normal tissues (A) show a relatively larger extracellular space with high water diffusion (longer arrow vectors higher ADC values), whereas the increased tissue cellularity in a neoplasm (B) reduces the intercellular space and consequently restricts diffusion (shorter arrow vectors lower ADC values).