Advertisement

Magnifying Endoscopy: Image-Enhanced Endoscopy Focused on JNET Classification—Blue Laser Imaging (BLI)

  • Naohisa YoshidaEmail author
  • Ken Inoue
  • Osamu Dohi
  • Ritsu Yasuda
  • Takaaki Murakami
  • Ryohei Hirose
  • Yuji Naito
  • Yutaka Inada
  • Kiyoshi Ogiso
  • Rafiz Abdul Rani
  • Yoshito Itoh
Chapter

Abstract

Blue laser imaging (BLI) (Fujifilm Co., Tokyo, Japan) is made from two types of lasers with wavelengths of 410 and 450 nm. BLI is a kind of narrow-band light observations. This mode enables us to observe the detailed surface pattern and vessel pattern for diagnosing JNET classifications for colorectal lesions. Although it is originally performed with NBI, the JNET classification can be used with BLI in similar to NBI; we previously demonstrated the high consistency in the findings of NBI and BLI magnification. Typical T1b cancers show loose vascular area and amorphous surface pattern. In those tumors, surface structure seems destroyed. However, some T1b cancers remain surface structures and show irregular vessel pattern and surface pattern. In this paper, we review the efficacies of BLI magnification for T1 cancers.

Keywords

Linked color imaging Blue laser imaging Colorectal polyp Polyp characterization 

References

  1. 1.
    Govaert JA, Fiocco M, van Dijk WA, et al. Multicenter stratified comparison of hospital costs between laparoscopic and open colorectal cancer resections: influence of tumor location and operative risk. Ann Surg. 2017;266:1021–8.CrossRefGoogle Scholar
  2. 2.
    Yoshida N, Wakabayashi N, Kanemasa K, et al. Endoscopic submucosal dissection for colorectal tumors: technical difficulties and rate of perforation. Endoscopy. 2009;41:758–61.CrossRefGoogle Scholar
  3. 3.
    Pimentel-Nunes P, Dinis-Ribeiro M, Ponchon T, et al. Endoscopic submucosal dissection: European Society of Gastrointestinal Endoscopy (ESGE) guideline. Endoscopy. 2015;47:829–54.CrossRefGoogle Scholar
  4. 4.
    Tanaka S, Kashida H, Saito Y, et al. JGES guidelines for colorectal endoscopic submucosal dissection/endoscopic mucosal resection. Dig Endosc. 2015;27:417–34.CrossRefGoogle Scholar
  5. 5.
    Osawa H, Yamamoto H. Present and future status of flexible spectral imaging color enhancement and blue laser imaging technology. Dig Endosc. 2014;26(Suppl 1):105–15.CrossRefGoogle Scholar
  6. 6.
    Yoshida N, Hisabe T, Inada Y, et al. The ability of a novel blue laser imaging system for the diagnosis of invasion depth of colorectal neoplasms. J Gastroenterol. 2014;49:73–80.CrossRefGoogle Scholar
  7. 7.
    Yoshida N, Yagi N, Inada Y, et al. The ability of a novel blue laser imaging system for the diagnosis of colorectal polyps. Dig Endosc. 2014;26:250–8.CrossRefGoogle Scholar
  8. 8.
    Nakano A, Hirooka Y, Yamamura T, et al. Comparison of the diagnostic ability of blue laser imaging magnification versus pit pattern analysis for colorectal polyps. Endosc Int Open. 2017;5:E224–31.CrossRefGoogle Scholar
  9. 9.
    Suzuki T, Hara T, Kitagawa Y, et al. Magnified endoscopic observation of early colorectal cancer by linked color imaging with crystal violet staining (with video). Gastrointest Endosc. 2016;84:726–9.CrossRefGoogle Scholar
  10. 10.
    Ikematsu H, Sakamoto T, Togashi K, et al. Detectability of colorectal neoplastic lesions using a novel endoscopic system with blue laser imaging: a multicenter randomized controlled trial. Gastointest Endosc. 2017;86:386–94.CrossRefGoogle Scholar
  11. 11.
    Yoshida N, Naito Y, Murakami T, et al. Linked color imaging improves the visibility of colorectal polyps: a video study. Endosc Int Open. 2017;5:E518–25.CrossRefGoogle Scholar
  12. 12.
    Yoshida N, Dohi O, Inoue K, et al. Blue laser imaging, blue light imaging, and linked color imaging for the detection and characterization of colorectal tumors. Gut Liver. 2019;13:140–8.CrossRefGoogle Scholar
  13. 13.
    Sano Y, Tanaka S, Kudo SE, et al. Narrow-band imaging (NBI) magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team. Dig Endosc. 2016;28:526–33.CrossRefGoogle Scholar
  14. 14.
    Kudo S, Hirota S, Nakajima T, et al. Colorectal tumours and pit pattern. J Clin Pathol. 1994;47:880–5.CrossRefGoogle Scholar
  15. 15.
    Kanao H, Tanaka S, Oka S, et al. Narrow-band imaging magnification predicts the histology and invasion depth of colorectal tumors. Gastrointest Endosc. 2009;69:631–6.CrossRefGoogle Scholar
  16. 16.
    Yoshida N, Naito Y, Yasuda R, et al. Possibility of blue laser imaging and linked color imaging for the efficacies of polyp detection (Japanese article). Endosc Dig. 2017;29:2200–8.CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Naohisa Yoshida
    • 1
    Email author
  • Ken Inoue
    • 1
  • Osamu Dohi
    • 1
  • Ritsu Yasuda
    • 1
  • Takaaki Murakami
    • 1
  • Ryohei Hirose
    • 1
  • Yuji Naito
    • 1
  • Yutaka Inada
    • 2
  • Kiyoshi Ogiso
    • 3
  • Rafiz Abdul Rani
    • 4
  • Yoshito Itoh
    • 1
  1. 1.Department of Molecular Gastroenterology and HepatologyKyoto Prefectural University of Medicine, Graduate School of Medical ScienceKyotoJapan
  2. 2.Department of GastroenterologyFukuchiyama City HospitalKyotoJapan
  3. 3.Department of GastroenterologyOsaka General Hospital of West Japan Railway CompanyOsakaJapan
  4. 4.Gastroenterology Unit, Faculty of MedicineUniversiti Teknologi MARAShah AlamMalaysia

Personalised recommendations