3.Principles of interpretaion of cardiac silhouette enlargement and abnormal pulmonary vascularity 3.1 Generalized cardiac enlargement 3.2 Pericardial effusion 3.3 Isolated cardiac chamber enlargement 3.3.1 Left atrium 3.32 Left ventricle 3.3.3 Right atrium 3.3.4 Right ventricle 3.4 Abnormal pulmonary vascularity 3.4.1 Increased pulmonary vascularity 3.4.1.1 High flow pattern 3.4.1.2 Pulmonary arterial hypertension pater 3.4.1.3 Pulmonary venous hypertension pattern 3.4.2 Decreased pulmonary vascularity 4.Abnormal imaging ffindings in commo cardiac disorders 4.1 Rheumatic heart disease 4.2 Hypertensive heart disease 4.3 Cardiomyopathy 4.4 Congenital left to right shunt 4.4.1 Atrial septal defect (ASD 4.4.2 Ventricular septal defect (VSD) 4.4.3 Patent ductus arteriosus (PDA) 4.4.4Tetralogy of Fallot (TOF) 4.5 Pulmonary Embolism (PE) 8 8 3. Principles of interpretation of cardiac silhouette enlargement and abnormal pulmonary vascu la r i t y 3.1 Generalized cardiac enlargement 3.2 Pericardial effusion 3.3 Isolated cardiac chamber enlargement 3.3.1 Left atrium 3.3.2 Left ventricle 3.3.3 Right atrium 3.3.4 Right ventricle 3.4 Abnormal pulmonary vascularity 3.4.1 Increased pulmonary vascularity : 3.4.1.1 High flow pattern 3.4.1.2 Pulmonary arterial hypertension pattern 3.4.1.3 Pulmonary venous hypertension pattern 3.4.2 Decreased pulmonary vascularity 4. Abnormal imaging f findings in common cardiac disorders 4.1 Rheumatic heart disease 4.2 Hypertensive heart disease 4.3 Cardiom yopathy 4.4 Congenital left to right shunt : 4.4.1 Atrial septal defect (ASD) 4.4.2 Ventricular septal defect (VSD) 4.4.3 Patent ductus arteriosus (PDA) 4.4.4Tetralogy of Fallot (TOF) 4.5 Pulmonary Embolism (PE)