Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right IJ approach Swan - Ganz catheter tip ends within the mediastinal contours in the right pulmonary artery , appropriately positioned . Otherwise , no significant interval change . Moderate to severe cardiomegaly persists and is overall unchanged . Mild pulmonary vascular congestion is overall unchanged . No frank pulmonary edema . Lung volumes remain slightly low , overall unchanged . No focal consolidation , pleural effusion , or pneumothorax . The cardiac pacemaker defibrillator device appears intact and unchanged in position .
    OUTPUT:
    
No significant interval change . Swan - Ganz catheter ends in right pulmonary artery .