Clin Endosc.  2014 Nov;47(6):504-508. 10.5946/ce.2014.47.6.504.

Colon Cancer Screening with Image-Enhanced Endoscopy

• Ko BM

• KMID: 2134487
• DOI: http://doi.org/10.5946/ce.2014.47.6.504

Abstract

Colorectal cancer (CRC) is a major cause of cancer mortality worldwide, and this has led to an increased use of screening colonoscopy. This screening has resulted in long-term risk reduction in asymptomatic individuals. However, endoscopists may fail to detect advanced adenomas or colon cancer during screening. The reasons that adenomas or cancers are missed are thought to be associated with the location of the lesions or the skills of the endoscopist. To address the limitations of white light endoscopy (WLE) for adenoma detection, advanced endoscopic images have recently been used. Image-enhanced endoscopies (IEEs), including the use of topical dyes, optical filtering, and ultramagnification, allow for gastrointestinal lesion analysis. Many studies have compared the adenoma detection rate (ADR) obtained by using WLE and IEE, but with different results. IEE can be used to help the endoscopist to improve their ADR in screening colonoscopy. This review examines the possible roles of image-enhanced colonoscopy in CRC screening.

Keyword

Image enhancement; Screening colonoscopy; Adenoma detection rate

MeSH Terms

Adenoma
Colonic Neoplasms*
Colonoscopy
Colorectal Neoplasms
Coloring Agents
Endoscopy*
Image Enhancement
Mass Screening*
Mortality
Risk Reduction Behavior
Coloring Agents

Figure

• 

  Fig. 1 A superficial elevated flat neoplasm detected on white light endoscopy (A) and chromoendoscopy with indigo carmine (B).

• 

  Fig. 2 White light endoscopic image (A) small polyp detected on narrow band imaging (B, C).

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