Fig. 3From: Quantitative assessment of visual estimation of the infrared indocyanine green imaging of lymph nodes retrieved at sentinel node navigation surgery for gastric cancerlymph nodes photographed in the black box. ICG- positive and -negative lymph nodes are easy to distinguish a and b. In the lower line c and d, the values for the region of reference (yellow dot square) and the region of interest (yellow square) are calculated and quantified using Photoshop, and the ratio of the mean value of the region of interest to the mean value of the region of reference is 0.118 and 0.614, respectivelyBack to article page