Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ central line is unchanged , tip overlying right atrium . NG tube tip overlies the gastric fundus . No CHF , focal infiltrate , or gross effusion is identified . Minimal blunting of left costophrenic angle noted .
    OUTPUT:
    
Doubt significant change compared with 1 day earlier . Right IJ central line tip overlies the right atrium . Clinical correlation regarding possible retraction is requested .