1. Medical Physics Coordination Centre, Department of Experimental Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Bologna, Italy
2. Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD USA
3. Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
4. Angiodroid S.r.l, Bologna, Italy