Comparison of Linked Color Imaging and Narrow-Band Imaging for Detection and Miss Rates during Right-Sided...

Area of Science:

• Gastroenterology
• Endoscopy
• Medical Imaging

Background:

• Right-sided colon lesions are often missed during colonoscopy.
• The efficacy of image-enhanced endoscopy (IEE) for detecting these lesions is under investigation.

Purpose of the Study:

• To compare the adenoma detection and miss rates of linked color imaging (LCI) versus second-generation narrow-band imaging (2G-NBI) in the right colon.

Main Methods:

• A multicenter randomized controlled trial involving 1,528 patients compared LCI and 2G-NBI for primary right-colon observation.
• Secondary outcomes included polyp detection and miss rates, with white-light imaging (WLI) used for secondary observation.

Main Results:

• Adenoma detection rates (ADR) and polyp detection rates (PDR) were comparable between LCI and 2G-NBI.
• Per-lesion miss rates for adenomas and polyps were significantly lower with LCI (19.9% vs 31.4% and 21.5% vs 31.9%, respectively).
• LCI demonstrated a reduced risk of missed lesions, particularly with expert endoscopists and shorter observation times.

Conclusions:

• Linked color imaging (LCI) resulted in significantly lower miss rates for right-sided colon lesions compared to 2G-NBI.
• While overall adenoma detection rates were similar, LCI enhances diagnostic accuracy for difficult-to-detect polyps.