Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , inspiratory volumes are lower . This likely , least in part , accounts for slight increased prominence the cardiomediastinal silhouette . There is upper zone redistribution and diffuse prominence of the vascular markings , suggesting CHF . There is bibasilar atelectasis . No frank consolidation or alveolar edema is identified . Minimal blunting of the right costophrenic angle , without gross effusion .
    OUTPUT:
    
Diffuse increased vascular markings likely reflects CHF . Low inspiratory volumes noted .