Affiliation: | a Department of Cardiac Surgery, Medical School, University of Eastern Piedmont “A. Avogadro,” Novara, Piedmont, Italy b Department of Radiology, Medical School, University of Eastern Piedmont “A. Avogadro,” Novara, Piedmont, Italy c Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria “Maggiore della Carità,” Medical School, University of Eastern Piedmont “A. Avogadro,” Novara, Piedmont, Italy d Department of Cardiothoracic Surgery, King's College Hospital, London, United Kingdom |