Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph from ___ , interval improvement in mild pulmonary edema . Moderate cardiomegaly persists . The single lead left pectoral pacemaker is in constant position . A hemodialysis catheter is placed in the right internal jugular vein .
    OUTPUT:
    
Interval improvement in mild pulmonary edema .