Imaged guided surgery during arteriovenous malformation of gastrointestinal stromal tumor using hyperspectral and indocyanine green visualization techniques: A case report

Figure 3 Intraoperative presentation and intraoperative calculation of the optical hyperspectral imaging parameters via TIVITA^® tissue. Circles represent the “region of interest” and the dotted line shows the selected resection margins before incision. A: Red–green–blue (RGB) image of the tumour; B: Tissue water index (TWI) of the tumour with the regions of interest (ROI) and planed resection margins; C: TWI of the tumour focused only on the resection margins; D: RGB of the tumour, focused on the antimesenteric side; E: Near-Infra-Red of the tumour with the ROI and planed resection margins, focused on the antimesenteric side; F: TWI of the tumour focused only on the resection margins, focused on the antimesenteric side.