1. Cardiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy (DC, MA, FA, LB, ODI, FPT, KR, AF, CP).
2. Department of Medical and Surgical Sciences – DIMEC – Alma Mater Studiorum, University of Bologna, Italy (DC, MA, FA, LB, ODI, FPT, KR, AF, CP).
3. Pediatric and Adult Cardiovascular, Thoraco-abdominal and Emergency Radiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy (FN, CS, LL).