Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the Swan - Ganz catheter has been pulled back of 1 cm , with tip in the main pulmonary artery . The perihilar vascular drawing has improved with reduction of vascular congestion . The other chest findings are unchanged
    OUTPUT:
    
Swan catheter pulled back of 1 cm , now with tip in the main pulmonary artery The vascular congestion has improved .