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Magnifying Endoscopy with Narrow Band Imaging for Diagnosis of Early Colorectal Cancer

  • Naoyuki Uragami

Abstract

Narrow band imaging (NBI) was developed by Gono et al. (1) and has been applied widely for the diagnosis of cancer by gastrointestinal endoscopy. In cases of colorectal tumors, in particular, a number of reports have demonstrated the potential utility of NBI for: 1) detecting lesions at screening colonoscopy (2, 3); 2) qualitative diagnosis based on pit patterns and tumor surface vessels (4, 5, 6, 7, 8); and 3) predicting invasion depth. No dye is used for the NBI observation, and digital NBI images (image-enhanced endoscopy) can be obtained easily at the touch of a button on the electronic endoscope. With no requirement for troublesome procedures such as dye spraying and rinsing of the lesion, NBI has been accepted with ease by endoscopists worldwide.

Keywords

Narrow Band Imaging Vascular Pattern Screen Colonoscopy Conventional Colonoscopy Qualitative Diagnosis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Gono K, Obi T, Yamaguchi M, et al (2004) Appearance of enhanced tissue features in narrowband endoscopic imaging. J Biomed Opt 9:568–577PubMedCrossRefGoogle Scholar
  2. 2.
    Adler A, Pohl H, Papanikolaou IS, et al (2008) A prospective randomised study on narrow-band imaging versus conventional colonoscopy for adenoma detection: does narrow-band imaging induce a learning effect? Gut 57:59–64PubMedCrossRefGoogle Scholar
  3. 3.
    Inoue T, Murano M, Murano N, et al (2008) Comparative study of conventional colonoscopy and pan-colonic narrow-band imaging system in the detection of neoplastic colonic polyps: a randomized, controlled trial. J Gastroenterol 43:45–50PubMedCrossRefGoogle Scholar
  4. 4.
    Machida H, Sano Y, Hamamoto Y, et al (2004) Narrow-band imaging in the diagnosis of colorectal mucosal lesions: a pilot study. Endoscopy 36:1094–1098PubMedCrossRefGoogle Scholar
  5. 5.
    Su MY, Hsu CM, Ho YP, et al (2006) Comparative study of conventional colonoscopy, chromoendoscopy, and narrow-band imaging systems in differential diagnosis of neoplastic and nonneoplastic colonic polyps. Am J Gastroenterol 101:2711–2716PubMedCrossRefGoogle Scholar
  6. 6.
    Hirata M, Tanaka S, Oka S, et al (2007) Evaluation of microvessels in colorectal tumors by narrow band imaging magnification. Gastrointest Endosc 66:945–952PubMedCrossRefGoogle Scholar
  7. 7.
    Chiu HM, Chang CY, Chen CC, et al (2007) A prospective comparative study of narrow-band imaging, chromoendoscopy, and conventional colonoscopy in the diagnosis of colorectal neoplasia. Gut 56:373–379PubMedCrossRefGoogle Scholar
  8. 8.
    Tischendorf JJ, Wasmuth HE, Koch A, et al (2007) Value of magnifying chromoendoscopy and narrow band imaging (NBI) in classifying colorectal polyps: a prospective controlled study. Endoscopy 39:1092–1096PubMedCrossRefGoogle Scholar

Copyright information

© Springer 2009

Authors and Affiliations

  • Naoyuki Uragami
    • 1
  1. 1.Gastroenterology CenterThe Cancer Institute Hospital of JFCRTokyoJapan

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