Colonoscopy: new approaches to better outcomes

Area of Science:

• Gastroenterology
• Endoscopic Imaging
• Colorectal Cancer Prevention

Background:

• Colorectal cancer prevention hinges on detecting and removing neoplastic polyps.
• Advances in imaging and inspection increase detection of small polyps with uncertain clinical significance.
• Accurate polyp prediction could enable optical triage for polyp management, enhancing efficiency and reducing costs.

Purpose of the Study:

• To review advances in mucosal imaging and inspection techniques for colorectal polyp management.
• To explore the potential of optical triage for improving colonoscopy efficiency and safety.
• To assess the impact of new technologies on polyp detection and characterization.

Main Methods:

• Review of high-definition white light colonoscopy, cap-fitted colonoscopy, and dye-based pan-chromoendoscopy.
• Evaluation of virtual chromoendoscopy for in-vivo polyp pathology prediction.
• Analysis of endoscopist behavior and training methods influencing adenoma detection rates.

Main Results:

• High-definition white light, cap-fitted, and dye-based chromoendoscopy enhance polyp detection.
• Virtual chromoendoscopy aids in accurate in-vivo prediction of polyp pathology, though not detection.
• Endoscopist behavior and targeted training significantly impact adenoma detection rates.

Conclusions:

• Improved mucosal imaging and inspection techniques enhance polyp detection and pathological prediction.
• Optical triage ('diagnose and discard' or 'diagnose and leave behind') offers potential to reduce polypectomy risks and costs.