Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube is in place , terminating approximately 1 .8 cm above the carina , and could be retracted approximately 2 .5 cm for ideal positioning . A right internal jugular central venous catheter terminates in the mid SVC . Postsurgical changes related to aortic stent graft placement are noted . Retrocardiac and left mid lung opacities could be due to pulmonary edema , infection , or contusion related to recent prior cardiac arrest . The heart size is top - normal . There is no pneumothorax or displaced rib fracture .
    OUTPUT:
    
1 . Retrocardiac and right ___ ___ opacities could be due to pulmonary edema , infection , or contusion in the setting of recent cardiac arrest . Clinical correlation is advised . 2 . Endotracheal tube could be retracted approximately 2 .5 cm for ideal positioning .