Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The intra-aortic balloon pump tip projects 3 .5 cm below the aortic knob apex , just at the level of the left main bronchus . Swan - Ganz catheter tip projects over the left pulmonary artery . Mild cardiomegaly is unchanged . Right basilar atelectasis has improved . There are minimal pleural effusions , if any . Lungs are otherwise grossly clear . No pneumothorax . Left ICD / pacemaker leads are continuous and terminate in the epicardial coronary vein and right ventricle , unchanged . The right atrial lead points medially .
    OUTPUT:
    
1 . Intra-aortic balloon pump tip terminates at the level of the left main bronchus , 3 .5 cm below the aortic knob apex . 2 . Improved right basilar atelectasis . 3 . The right atrial pacemaker lead points medially .