Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with earlier the same day , the IABP has been pulled back and now lies slightly below the inferior rim of the aortic knob ( the inferior edge of the right thumb is indistinct due to rotation , which limits precise measurement ) . Cardiomediastinal silhouette is grossly unchanged . Vascular markings are more pronounced than on ___ , but similar to earlier the same day --___ could reflect CHF . Minimal blunting of the right costophrenic angle is probably unchanged . No left effusion identified . Probable bibasilar atelectasis , similar to prior . No pneumothorax is detected .
    OUTPUT:
    
Interval repositioning of IABP . The tip now lies slightly below the inferior rim of aortic knob . CHF , similar to earlier the same day , but slightly increased compared with this compared with 1 day earlier .