1. From the Biomedical Magnetic Resonance Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium; Laboratoire d'Oncologie et de Chirurgie Expérimentale, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium; and Department of Histopathology, Royal Surrey County Hospital, Guildford, Surrey, UK