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