Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior film , a right IJ Swan - Ganz catheter is now present , tip over proximal most right pulmonary artery . No pneumothorax is detected Inspiratory volumes are somewhat low , but similar to the prior film . Allowing for this , there is moderate to moderately severe cardiomegaly , similar to the prior film . There is bibasilar atelectasis , slightly increased . No overt CHF or gross effusion . No definite focal infiltrate .
    OUTPUT:
    
New right IJ Swan - Ganz catheter , with tip over proximal most pulmonary artery . Slightly more pronounced bibasilar atelectasis . Otherwise , I doubt significant interval change .