Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a three - lead pacemaker / ICD device with leads again terminating in the right atrium , right ventricle and coronary sinus , respectively . The cardiac , mediastinal and hilar contours appear stable . There is similar to somewhat less striking , mild vascular congestion . Streaky opacity at the left base suggests minor atelectasis associated with low lung volumes .
    OUTPUT:
    
Findings suggests mild vascular congestion , similar to slightly improved .