Real-time assessment of intestinal perfusion by fluorescence–based enhanced reality

Abstract

FLER (Fluorescence-based Enhanced Reality) is a fluorescence videography system integrating a near-infrared endoscope able to detect the fluorescence signal emitted by indocyanine green (ICG) and an image analyser software (ER-PERFUSION), which can generate a virtual perfusion cartography based on fluorescence time-to-peak. The perfusion cartography can be overlapped on the real-time images to obtain the enhanced reality to guide intestinal resection and assess vascular supply at the future anastomotic site. The concept along with the presentation of ongoing works and future perspectives are presented in this chapter.