Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes have improved and there may also be an improvement in the diffuse interstitial infiltration in both lungs which appeared between ___ and ___ . Heart size is top normal common exaggerated by low lung volumes . Distended mediastinal veins and suggests elevated central venous pressure or volume . There is no pneumothorax or pleural effusion . ET tube in standard position , tip no less than 3 .5 cm above the carina . Right PICC line ends in the right atrium at the level no less than 6 cm below the carina , and there would need to be withdrawn 3 cm to place it low in the SVC .
    OUTPUT:
    
Slight improvement in severe interstitial interstitial pulmonary abnormality over 20 hours . Right PICC line ends in right atrium . ET tube in standard placements .