title: Preoperative colonic cancer tattooing using the near-infrared fluorescence laparoscopic imaging system.
abstract: BACKGROUND
  To identify a colorectal cancer tumor site for surgery, preoperative endoscopic marking methods, such as India ink tattooing or clipping, are generally performed. However, India ink tattooing causes problems such as impaired surgical view because of adverse events, ink leakage into the peritoneal cavity, and peritonitis or adhesion ileus as a result of leakage. The clipping method requires checking by palpation, which is unsuitable for laparoscopic surgery.
  
  
  METHODS
  We devised a preoperative marking method for colorectal cancer surgery (laparotomy) by applying the fluorescent dye indocyanine green. Herein, we report its usefulness.
  
  
  CONCLUSIONS
  We report the application of fluorescent dye indocyanine green in laparoscopic surgery.
authors: Department of Gastroenterological and General Surgery, Showa University Hospital, Tokyo, Japan. y.ozawa@med.showa-u.ac.jp.
authors: Yoshiaki
authors: Y
authors: Ozawa
authors: Department of Gastroenterological and General Surgery, Showa University Hospital, Tokyo, Japan.
authors: Masahiko
authors: M
authors: Murakami
authors: Department of Gastroenterological and General Surgery, Showa University Hospital, Tokyo, Japan.
authors: Makoto
authors: M
authors: Watanabe
authors: Department of Gastroenterological and General Surgery, Showa University Hospital, Tokyo, Japan.
authors: Sota
authors: S
authors: Yoshizawa
authors: Department of Gastroenterological and General Surgery, Showa University Hospital, Tokyo, Japan.
authors: Satoru
authors: S
authors: Goto
authors: Department of Gastroenterological and General Surgery, Showa University Hospital, Tokyo, Japan.
authors: Koji
authors: K
authors: Otsuka
authors: Department of Gastroenterological and General Surgery, Showa University Hospital, Tokyo, Japan.
authors: Takeshi
authors: T
authors: Aoki
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D004396:Coloring Agents; D005260:Female; D005453:Fluorescence; D006801:Humans; D007208:Indocyanine Green; D010535:Laparoscopy / Q000379:methods*; D011300:Preoperative Care; D025321:Surgery, Computer-Assisted / Q000379:methods*; D013653:Tattooing
chemical_list: D004396:Coloring Agents; D007208:Indocyanine Green
keywords: Colonic tattooing; ICG fluorescent dye; laparoscopy