Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The intra-aortic balloon pump tip is 1 .5 cm below the aortic knob . Swan - Ganz catheter , left - sided chest tube , ET tube , mediastinal drains , and sternal wires are unchanged . There is pulmonary vascular redistribution with hazy alveolar infiltrates right greater than left . There small bilateral pleural effusions .
    OUTPUT:
    
Intra aortic balloon pump with tip 1 .5 cm below the aortic knob