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KMID : 1141920210370030133
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Annals of Coloproctology
2021 Volume.37 No. 3 p.133 ~ p.140
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Multifunctional Indocyanine Green Applications for Fluorescence-Guided Laparoscopic Colorectal Surgery
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Son Gyung-Mo
Ahn Hong-Min
Lee In-Young
Ha Gi-Won
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Abstract
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Indocyanine green (ICG) could be applied for multiple functions such as fluorescent tumor localization, fluorescence lymph node mapping (FLNM), and intraoperative angiography in colorectal cancer surgery. With the near-infrared (NIR) systems, colonoscopic ICG tattooing can be used to define the early colorectal cancer that cannot be easily distinguished through the serosal surface. The lymphatic pathways can be visualized under the NIR system when ICG is injected through the submucosal or subserosal layer around the tumor. Intraoperative ICG angiography can be applied to find a favorable perfusion segment before the colon transection. Although all fluorescence functions are considered essential steps in image-guided surgery, it is difficult to perform multifunctional ICG applications in a single surgical procedure at once because complex protocols could interfere with each other. Therefore, we review the multifunctional ICG applications for fluorescent tumor localization, FLNM, and ICG angiography. We also discuss the optimal protocol for fluorescence-guided colorectal surgery.
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KEYWORD
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Tattooing, Fluorescent dyes, Fluorescein angiography, Laparoscopy, Colorectal neoplasms
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