Gary Cook is Professor of PET Imaging in the King’s College London and Guy’s & St Thomas’ PET Centre, the head of the Cancer Imaging Department in the Division of Imaging Sciences and Biomedical Engineering, King’s College London, and an honorary consultant at Guy’s & St Thomas’ Hospitals, London, UK. He is a member of the Guy’s and St Thomas’ Hospitals prostate cancer multidisciplinary team, imaging lead for the King’s Health Partners Prostate Cancer Research group, and a member of the UK National Cancer Research Institute Prostate Cancer Clinical Studies Group.