Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Once again , the Swan - Ganz catheter is positioned very distally within the right pulmonary arterial system , approximately 6 .6 cm lateral to the mediastinal margins . This is unchanged in appearance compared to the prior study . An intra - aortic balloon pump is essentially unchanged in appearance . There is persistent moderate cardiomegaly . A right - sided PICC terminates in the proximal SVC . No pneumothorax , consolidation or pleural effusion seen .
    OUTPUT:
    
No significant interval change when compared to the prior study .