Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Linear bibasilar opacities likely reflect atelectasis . There is no pulmonary edema or pleural effusions . The vasculature appears sclerotic secondary to low lung volumes . Cardiomediastinal and hilar contours appear within normal limits . Numerous mediastinal clips are noted . Median sternotomy wires appear intact . The intended right ventricular pacer follows a nonstandard course .
    OUTPUT:
    
Low lung volumes resulting in bronchovascular crowding . Probable bibasilar atelectasis . No pulmonary edema or effusions . Transvenous ventricular pacing lead either cannulates the coronary sinus and a surface cardiac vein to the cardiac apex or goes through the interventricular septum or navigates a ventricular transposition . Clinical correlation , including functional assessment would be required for clarification .