Fig. 2.

Optical imaging with the EleVision system. SNB staging of a cT2N0M0 lesion crossing the midline in the FOM (A). SPECT/CT showed two SNs in the ipsilateral level 2a and level 3 (B). Intraoperatively, a third SN was detected by optical imaging in the anterior level 1b that was not visible on SPECT/CT due to overshadowing form the primary injection side. The anatomical location of all three detected SNs in pictogram (C). Intraoperative imaging of level 1b close to the injection site in color (D), with merged ICG-based optical signal (E) and the surgical field after super-selective ND of the left anterior level 1b and level 1a