Chest X ray Left-sided heart failure cardiomegaly (cardiothorax ratio>50%) dilated pulmonary vein pulmonary infiltrates. prominent bronchovascular markings Interstitial edema, Kerley.s B line, alveolar edema, pleural effusion when PCWP>25-30mmHg ■ Right- sided hF Cardiomegaly18 Chest X ray Left-sided heart failure cardiomegaly (cardiothorax ratio＞50%) dilated pulmonary vein pulmonary infiltrates. prominent bronchovascular markings Interstitial edema, Kerley.s B line, alveolar edema, pleural effusion when PCWP＞25～30mmHg. Right-sided HF Cardiomegaly