Keywords: 2D; CMR; CP; CT; Cardiac computed tomography; Cardiovascular magnetic resonance; Computed tomography; Constrictive pericarditis; ECG; Echocardiography; Electrocardiographic; IVC; Inferior vena cava; LGE; LV; Late gadolinium enhancement; Left ventricular; MR; Magnetic resonance; NSAID; Nonsteroidal anti-inflammatory drug; PET; PEff; PW; Pericardial disease; Pericardial effusion; Positron emission tomography; Pulsed-wave; RA; RV; Right atrial; Right ventricular; SE; SSFP; STIR; SVC; Short-tau inversion recovery; Spin-echo; Steady-state free precession; Superior vena cava; T1-weighted; T1W; T2-weighted; T2W; TEE; TTE; Transesophageal echocardiography; Transthoracic echocardiography; Two-dimensional.