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The recent introduction of Intensity Map enables the surgeon to interpret the grade of fluorescence displayed on the screen and correlate that with an intensity fluorescence scale, throughout the procedure, thus resulting in improved perception of tissue marking over surgical time. Overlaid images of white light and NIR/ICG are combined and processed with intelligent analysis software. With a specialized CCU, miniscule fluorescence tonal differences not visible to the human eye are detected and highlighted by a color scale mapping system.
Ranging from blue tones (the weakest fluorescence signal) to yellow/orange (the strongest fluorescence signal), color mapping maximizes early detection of lymphatic circulation, and SLN. The color grading system also positively influences the distinction of SLN from subsequent lymph nodes, which can be very helpful in surgical decision making.
The standard endoscopic imaging systems provide the surgeon with indirect monocular views of the operative field, denying the operator the binocular depth cues that provide a sense of stereopsis. The loss of binocular vision in a two‐dimensional (2D) display causes visual misperceptions – mainly loss of depth perception, adding to the surgeon's fatigue.