Heart failure (subtle septal thickening to gross pulmonary odema)

Interstitial pulmonary oedema, Alveolar pulmonary oedema, upper lobe blood diversion

Patterns of chamber enlargement (e.g left atrial dilatation)

Pericardium- effusion, calcification, pneumopericardium

Aortic dilatation, rib notching (e.g coarctation)