1. Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, National Heart and Lung Institute, Imperial College, London, UK
2. Department of Cardiology, Heart Lung Centre, Leiden University Medical Centre, Leiden, The Netherlands
3. Turku PET Centre, University of Turku, and Turku University Hospital, Turku, Finland
4. MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Centre, Semmelweis University, Budapest, Hungary