Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a right internal jugular approach central venous catheter , which terminates in the right atrium , and could be retracted approximately 3 to 3 .5 cm for positioning just above the cavoatrial junction . Otherwise , the lung volumes are slightly low , but clear , with no pneumothorax , pleural effusion , pulmonary edema , or focal airspace opacity . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Right IJ central venous line terminates in the right atrium , and could be retracted 3 - 3 .5 cm for positioning just above the cavoatrial junction .