Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from the same day , the IABP has been advanced and is now beyond the transverse portion of the aortic arch approximately 1 cm , near the origin of the LSCA . Swan - Ganz catheter remains in good position . Endotracheal tube is 4 cm from the carina . No overt pulmonary edema . Mild basilar atelectasis . Small bilateral effusions . Gastric distention is partial visualized .
    OUTPUT:
    
the IABP has been advanced and is now beyond the transverse portion of the aortic arch approximately 1 cm , near the origin of the LSCA .