Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . High position of the IVC filter is similar to prior . Heart size and cardiomediastinal contours are stable . Aortic knob calcification is unchanged . The lungs are clear without focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .