Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest film ___ at 15 :45 is submitted .
    OUTPUT:
    
Nasogastric tube is seen coursing below the diaphragm with the tip not identified . The left subclavian PICC line now has its tip in the distal SVC . Tracheostomy tube in satisfactory position . The heart remains enlarged . There are stable layering bilateral effusions . The pulmonary edema has slightly improved . No pneumothorax . Bibasilar opacities likely reflect compressive lower lobe atelectasis .