Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There are lower lung volumes compared to prior study , which exaggerates the size of the heart and the interstitial markings . There is likely bibasilar atelectasis which may be exaggerated by low lung volumes . No pleural effusion or pneumothorax is seen . The mediastinal contours are normal . A calcified pleural plaque is again seen in the right lower lung . The aorta is either tortuous or dilated , unchanged compared to ___ . There are significant coronary artery calcifications .
    OUTPUT:
    
Low lung volumes and likely bibasilar atelectasis . No definite evidence of acute cardiopulmonary process .