Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is again seen with tip terminating approximately 4 .4 cm from the carina , in unchanged position . A left subclavian venous access catheter projects over the lower SVC . Low lung volumes bilaterally . Heart size and mediastinal contours appear unchanged . No significant change in mild interstitial pulmonary edema or plate - like atelectasis bilaterally . No pleural effusion . Osseous structures are unchanged .
    OUTPUT:
    
1 . Lines and tubes in satisfactory position . 2 . No change in mild pulmonary edema and bibasilar atelectasis .