Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The monitoring and supporting devices , including the endotracheal tube , right - sided IJ line , left - sided chest tube , mediastinal tube , NG tube , surgical clips and sternotomy wires are unchanged . Little change is seen compared to prior with low lung volumes , retrocardiac atelectasis , mild cardiomegaly and mild pneumopericardium . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Supporting and monitoring devices are unchanged . 2 . Low lung volumes with retrocardiac atelectasis and minimal pneumopericardium unchanged from prior .