Prof. Vincent GREGOIRE graduated as a Medical Doctor (MD) in 1987 from the Université Catholique de Louvain in Belgium. He was board certified in Radiation Oncology in Belgium in 1994 and obtained his PhD in Radiation Biology in 1996 after a fellowship at the Netherlands Cancer Institute in Amsterdam (The Netherlands) and at MD Anderson Cancer Center in Houston (USA). Since his return from the USA, Prof. GREGOIRE was appointed at the Academic Hospital of the Catholic University of Louvain in Brussels (Belgium) where he was the Director of the Center for Molecular Imaging, Oncology and Radiotherapy, Full Professor in Radiation Oncology, and Head of Clinic in the Department of Radiation Oncology. From May 1st 2018, Prof. Vincent GREGOIRE is the Head of the Radiation Oncology Dept. at the Léon Bérard Cancer Center in Lyon (France). He coordinates the Head and Neck Oncology program and he is vice-President of the board of EORTC, past-Chairman of the Radiation Oncology Group of the EORTC and Chairman of the Head & Neck group of the EORTC. Vincent GREGOIRE was acting chairman of an ICRU Report Committee on "dose prescription, specification and reporting in IMRT”. In 2008, he was awarded Honorary Fellow of the British Royal College of Radiology, and in 2016 Honorary Fellow of the Irish College of Radiology. In 2014 he received the Breur Award from ESTRO and in 2015, he was awarded Honorary ESTRO Physicist. In 2018, he received the Jens Overgaard legacy award from ESTRO.