Gastroenterology Research and Practice (Jan 2016)

Blue Laser Imaging-Bright Improves Endoscopic Recognition of Superficial Esophageal Squamous Cell Carcinoma

  • Akira Tomie,
  • Osamu Dohi,
  • Nobuaki Yagi,
  • Hiroaki Kitae,
  • Atsushi Majima,
  • Yusuke Horii,
  • Tomoko Kitaichi,
  • Yuriko Onozawa,
  • Kentaro Suzuki,
  • Reiko Kimura-Tsuchiya,
  • Tetsuya Okayama,
  • Naohisa Yoshida,
  • Kazuhiro Kamada,
  • Kazuhiro Katada,
  • Kazuhiko Uchiyama,
  • Takeshi Ishikawa,
  • Tomohisa Takagi,
  • Osamu Handa,
  • Hideyuki Konishi,
  • Yuji Naito,
  • Yoshito Itoh

DOI
https://doi.org/10.1155/2016/6140854
Journal volume & issue
Vol. 2016

Abstract

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Background/Aims. The aim of this study was to evaluate the endoscopic recognition of esophageal squamous cell carcinoma (ESCC) using four different methods (Olympus white light imaging (O-WLI), Fujifilm white light imaging (F-WLI), narrow band imaging (NBI), and blue laser imaging- (BLI-) bright). Methods. We retrospectively analyzed 25 superficial ESCCs that had been examined using the four different methods. Subjective evaluation was provided by three endoscopists as a ranking score (RS) of each image based on the ease of detection of the cancerous area. For the objective evaluation we calculated the color difference scores (CDS) between the cancerous and noncancerous areas with each of the four methods. Results. There was no difference between the mean RS of O-WLI and F-WLI. The mean RS of NBI was significantly higher than that of O-WLI and that of BLI-bright was significantly higher than that of F-WLI. Moreover, the mean RS of BLI-bright was significantly higher than that of NBI. Furthermore, in the objective evaluation, the mean CDS of BLI-bright was significantly higher than that of O-WLI, F-WLI, and NBI. Conclusion. The recognition of superficial ESCC using BLI-bright was more efficacious than the other methods tested both subjectively and objectively.