Image-Enhanced Capsule Endoscopy Improves the Identification of Small Intestinal Lesions.

Noriyuki Ogata,Fumio Ishida,Yasuharu Maeda,Kazuo Ohtsuka,Masataka Ogawa,Shin-Ei Kudo

doi:10.3390/diagnostics11112122

Abstract

Image-enhanced endoscopy is useful for diagnosing and identifying lesions in the gastrointestinal tract. Recently, image-enhanced endoscopy has become a breakthrough technology that has attracted significant attention. This image enhancing technology is available for capsule endoscopy, which is an effective tool for small intestinal lesions and has been applied in flexible spectral color enhancement technology and in contrast capsule like narrow-band imaging. In this field, most researchers focus on improving the visibility and detection of small intestinal lesions. This review summarizes previous studies on image-enhanced capsule endoscopy and aims to evaluate the efficacy of this technology.

Highlights

Capsule endoscopy (CE) was introduced in 2000 [1]
Previous studies have shown that FICE improves the detection rate of small intestinal lesions, with FICE 1 and FICE 2 suited to the detection of erosions, ulcers, and angioectasia (Table 1)
Gupta et al [31] reported that FICE did not significantly improve the detection of small intestinal lesions compared with white light images (WLIs)

Summary

Introduction

Capsule endoscopy (CE) was introduced in 2000 [1]. CE allows the visualization of the mucosa throughout the small intestine. Since 2004, image-enhanced endoscopy (IEE) has been reported to improve the detection and diagnosis of gastrointestinal lesions [14,15,16]. IEE would be important for improving the identification of small bowel lesions in the presence of bile and blood. Other reports have suggested that FICE may improve the visibility of small intestinal lesions [25,26]. This review aims to consolidate existing clinical data on the utility of IEE for improving the detection rate and characterization of small bowel pathological findings using CE, as compared to that of white light images (WLIs). FICE has been hypothesized to enhance surface patterns and can improve the visualization and detection of lesions [27]. FICE 1 aims to reduce bile interference, FICE 2 aims to emphasize blood, and FICE 3 aims to emphasize the differences between bile and blood

Contrast Capsule

Detection of Lesions

Characterization of Lesions

Colon Capsule Endoscopy

Findings

Discussion