Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval decrease in reticular opacities suggesting improvement of pulmonary edema . No confluent consolidation is identified . There is no pneumothorax . Cardiomediastinal and hilar contours are unchanged from prior . Median sternotomy wires appear intact . A prosthetic aortic valve is again noted .
    OUTPUT:
    
Interval decrease in pulmonary edema as compared to prior examination .