Desley van Zoggel

PET/CT response after induction chemotherapy 135 CHAPTER 7 MRI and PET/CT show different components of response— anatomical and metabolic changes respectively— and therefore are complementary. For both techniques correlation with final pathology is not optimal and is negatively influenced by longer intervals. However, the correlation with R0 resection is more useful. Future research is needed to establish for which patients response evaluation with PET/CT may be of added value before routine use can be advocated.