Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior study , I doubt significant interval change . Again seen are left - sided pacemaker , with lead tips over the right atrium right ventricle . There are low inspiratory volumes . The enlarged cardiomediastinal silhouette is grossly unchanged . Opacification at both lung bases with obscuration of both hemidiaphragms is unchanged . Band of density in the left mid zone , extending cephalad towards left chest wall is also unchanged . Vascular plethora , compatible with CHF , is also grossly unchanged .
    OUTPUT:
    
Doubt significant interval change .