Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post tracheostomy . There is a right PICC line , which terminates in the lower SVC . There is a dialysis catheter , which terminates in the right atrium . In comparison to the prior radiograph the bilateral alveolar opacities , right worse than left , have improved with better visualization of the right hemidiaphragm and right heart border . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . There are surgical clips seen in the upper abdomen .
    OUTPUT:
    
1 . Appropriate positioning of tracheostomy , right PICC line , and dialysis catheter . 2 . Improved in bilateral airspace opacities , right worse than left .