Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: NG tube can be traced down to the level of carina but is not visualized distally . Left PICC line terminates at mid to low SVC . Right IJ venous line has been removed . The appearance of lung parenchyma is not changed . Pleural effusion is minimal , if any . Severe cardiomegaly is unchanged .
    OUTPUT:
    
NG tube can be traced down to the level of carina but is not visualized distally .