[1] Univ Hosp Leuven, Dept Cardiol, Leuven, Belgium
[2] Univ Hosp Leuven, Dept Nucl Med, Leuven, Belgium
[3] Katholieke Univ Leuven, Leuven Biostat & Stat Bioinformat Ctr L BioStat, Leuven, Belgium
[4] Univ Hosp Oldenburg, Dept Internal Med, Cardiol, Oldenburg, Germany