Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slightly rotated positioning . There are low inspiratory volumes . Allowing for this , heart size is borderline . No CHF , focal infiltrate or effusion is detected . Possible minimal subsegmental atelectasis at both bases . No pneumothorax detected . No free air seen beneath the diaphragms .
    OUTPUT:
    
Low inspiratory volumes with minimal bibasilar atelectasis . No focal infiltrate or pneumothorax detected .