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. Author manuscript; available in PMC: 2020 Aug 4.
Published in final edited form as: Gastric Cancer. 2018 Aug 31;22(3):463–472. doi: 10.1007/s10120-018-0871-5

Figure 1. Multi-color fluorescence mini-endoscopic system and NIR-PIT procedure.

Figure 1.

(A) Multi-color fluorescence imaging system is based on a clinically available fiber optic endoscope and light source. Excitation light is provided by multi-band excitation filters. Endoscopic images were obtained via a beam splitter, where the white light images were detected using the Color-CCD camera and the fluorescence images were filtered by multi-color emission filters and detected with an (EM)-CCD camera. Both images are displayed side by side on the monitor. (B) The endoscope was inserted into abdominal cavity through a small lower abdominal incision, and the abdominal cavity was inflated with air. (C) Peritoneal cavity was exposed to NIR light using a Cylindical Light Diffuser with a NIR laser through the 18G × 2 1/2” SURFLO®.