CARDIOVASCular Unexpected fiNdings in patiEnts Undergoing eXecution of PET/tc

The goal of this single-center observational study is to retrospectively evaluate incidental findings at the cardiovascular level in a selection of patients referred to the O.U. of Nuclear Medicine of Policlinco S.Orsola-Malpighi who underwent a PET/CT investigation. In particular, the present study is aimed to explore in such patients occasional findings of hypercapturing radiopharmaceutical findings specifically referred to: * infection inflammatory processes of implantable cardiac devices (ICDs, pacemakers); * phenomena affecting the atria during episodes of atrial fibrillation; * infection and inflammatory processes of cardiovascular structures (endocarditis, myocarditis, pericarditis, amyloidosis). Patients who performed PET/CT examination at the Sant'Orsola-Malpighi Nuclear Medicine O.U. during the period between 01/01/2017 and 31/12/2019 will be included in this registry. Any cardiovascular events that occurred within the Sant'Orsola-Malpighi Polyclinic setting and up to 3 months after the date of the PET/CT scan will be subsequently evaluated.