Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The new RV lead terminates in the right ventricle . The remaining leads are unchanged in position . Median sternotomy wires are noted . There is some opacification of the right lower lobe , likely reflecting atelectasis . Marked cardiomegaly is unchanged . There is a small right pleural effusion . There is no pulmonary vascular congestion or pneumothorax .
    OUTPUT:
    
Standard positioning of new RV lead .