Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is limited secondary to portable technique and patient body habitus . There is no confluent consolidation or overt pulmonary edema . The cardiomediastinal silhouette is stable . Radiopaque foreign body projects over the SVC as on prior . Median sternotomy wires are again noted .
    OUTPUT:
    
No definite acute cardiopulmonary process .