Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Right PICC line ends in the lower SVC . Lungs are clear . There is no pleural effusion or pneumothorax . Sternotomy wires are again seen . Moderate cardiomegaly is stable . Aortic valve replacement is seen . No significant change in mediastinum compared to ___ .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . No significant change compared to ___ .