Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 1 day prior , no significant changes are appreciated . Moderate cardiomegaly , mild pulmonary edema , and small , left greater than right pleural effusions are unchanged . No new focal opacities . No pneumothorax . A right - sided IJ Swan - Ganz catheter terminates in the mid descending right pulmonary artery , several cm beyond optimal placement . Median sternotomy wires are intact and unchanged in alignment .
    OUTPUT:
    
Moderate cardiomegaly , mild pulmonary edema , and small , left greater than right pleural effusions are unchanged . A right - sided IJ Swan - Ganz catheter terminates several cm beyond optimal positioning .