1. Department of Cardiology, Aarhus University Hospital, Palle-Juul Jensens Boulevard 99, 8200 Aarhus N, Skejby, Denmark, Denmark
2. Department of Cardiology, Odense University Hospital, Søndre Boulevard 29, 5000 Odense C, Odense, Denmark
3. Institute of Clinical Medicine, Aarhus University Hospital, Skejby, Denmark
4. Division of Image Processing, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
5. Department of Clinical Epidemiology, Aarhus University Hospital, Skejby, Denmark