Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has had prior type B aortic dissection repair . Given for differences in technique , there is improved inspiration and aeration of the lungs . The right - sided pleural effusion , also appears smaller , although this also can be related to technique . Biapical pleural thickening and scarring , likely related to prior infection .
    OUTPUT:
    
Improved aeration , and likely right effusion given for differences in technique .