Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the prior radiograph obtained two days prior , there has been mild improvement in the aeration of the lower lobes of the lungs , particularly on the left . Bilateral diffuse patchy infiltrates persist , most consistent with ARDS . There is relative sparing of the apices . There is no definite pleural effusion . There is no pneumothorax . The cardiomediastinal silhouette is poorly evaluated due to adjacent opacities , although unchanged . The endotracheal tube is 5 .3 cm from the carina . A right internal jugular central venous catheter terminates in the mid SVC . An NG tube courses below the diaphragm with the tip out of the field of view . Cervical hardware is partially imaged .
    OUTPUT:
    
Slight improvement in the bilateral diffuse opacities which are most consistent with ARDS .