Laboratory scoring system to predict hepatic indocyanine green clearance ability during fluorescence imaging-guided laparoscopic hepatectomy

Figure 1 Different liver background fluorescence intensity levels. A and B: Low fluorescence intensity liver background images of patient 1 in green fluorescence and spy display modes, respectively; C and D: Liver background images of patient 2 with relative low (common) fluorescence intensity in green fluorescence and spy display modes, respectively; E and F: High fluorescence intensity liver background images of patient 3 in green fluorescence and spy display modes, respectively; G and H: Liver background images with extremely high fluorescence intensity of patient 4 in green fluorescence and spy display modes, respectively.