Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from earlier today , right - sided PICC has now been repositioned and is in the low SVC . Improved aeration of the lung bases likely related to better inspiratory effort . Pulmonary vascular markings also appear less engorged . No effusion or pneumothorax .
    OUTPUT:
    
Right - sided in low SVC .