Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to ___ , the lung volumes have improved . The vascular pedicle and the heart appear smaller . There is no evidence for pulmonary edema . There is persistent basal atelectasis and small to moderate bilateral pleural effusions . Right - sided central line terminates in mid to low SVC , unchanged from prior . No pneumothorax is seen . Sternotomy wires are aligned and intact .
    OUTPUT:
    
Small bilateral pleural effusion . Improved pulmonary edema .