In Silico Modelling of Tumour Margin Diffusion and Infiltration: Review of Current Status

Figure 2

Schematic diagram of CTV and PTV correlation for conventional treatment techniques, on the left, as compared to modern treatment techniques, on the right. CTV is indicated by red contour and blue contour defines the PTV. As shown, the reduction of PTV may result in missing a part of microscopic disease that leads to poor treatment efficacy.