Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Sternotomy cerclage wires and prosthetic cardiac valve are intact and in stable position . Left ventricular configuration of the heart is unchanged . Atelectasis and scarring in the lower lobes is similar to prior . Left hemidiaphragm remains mildly elevated . No focal consolidation , pleural effusion , or pneumothorax . Thoracic levoscoliosis is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .