Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube tip lies approximately 2 .8 cm above the carina . NG tube present , extending beneath diaphragm , off film . Right IJ Swan - Ganz catheter tip overlies the main pulmonary artery , possibly near the origin of the right pulmonary artery . Left - sided battery pack with lead extending cephalad again noted . Right - sided central line tip overlies the distal SVC . There is relative paucity of vessels at the right lung apex , but this is similar to prior films and no definite pneumothorax identified . Cardiomediastinal silhouette is unchanged . Mild vascular plethora and atelectasis the lung bases again noted . Bibasilar atelectasis may be very slightly improved .
    OUTPUT:
    
Lines and tubes as described . ET tube lies approximately 2 .8 cm above the carina . Bibasilar atelectasis again noted , possibly slightly improved .