[1] G dAnnunzio Univ Chieti Pescara, Inst Adv Biomed Technol, Dept Neurosci Imaging & Clin Sci, Via Luigi Polacchi 11, I-66100 Chieti, Italy
[2] Casa Cura Villa Serena, Citta S Angelo, Italy
[3] Barts Hlth NHS Trust, Barts Heart Ctr, Dept Cardiol, London EC1A 7BE, England