Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Semi-erect portable AP view of the chest . There is a slightly deeper inspiratory effort compared to prior study . Bibasilar atelectasis has slightly improved . No infiltrate . No pleural effusion . A semicircular density overlying the cardiac shadow is consistent with mitral valve calcifications . There is no pulmonary edema . An NG tube is seen with its tip in the stomach and last side port adjacent to but below the GE junction .
    OUTPUT:
    
1 . Improvement in bibasilar atelectasis . 2 . No infiltrate or pulmonary edema . 3 . Mitral valve annular calcifications .