Diagnostic Accuracy of 3-dimensional Imaging Device on Polyps and Adenomas During Colonoscopy

Inclusion criteria

• Aged over 18 years;
• Endoscopically diagnosed with colorectal polyps;
• Signing the written informed consent.

Exclusion criteria

• Patients with mental illness or severe functional disorder who cannot cooperate with colonoscopy;
• Patients with severe cardiopulmonary insufficiency;
• Patients with severe coagulation disorders or high bleeding risk (platelets <50×10⁹/L, INR >1.5; discontinuation of antithrombotic drugs should follow the 2012 Japanese Guidelines for Gastroenterological Endoscopy in Patients Undergoing Antithrombotic Treatment and the2017 Appendix on Anticoagulants Including Direct Oral Anticoagulants;
• Patients with severe electrolyte imbalances;
• Patients with acute peritonitis or suspected intestinal perforation;
• Patients with severe inflammatory bowel disease/toxic megacolon;
• Patients with polyposis syndromes (e.g., Peutz-Jeghers syndrome, Cronkhite-Canada syndrome, familial adenomatous polyposis [FAP], Lynch syndrome, etc.);
• Patients with stage 3 or higher hypertension (systolic blood pressure ≥180 mmHg or diastolic blood pressure ≥110 mmHg);
• Patients with untreated severe abdominal hernia, intestinal obstruction, or advanced colorectal cancer;
• Patients with intestinal strictures of any cause;
• Cases requiring only endoscopic submucosal dissection (ESD);
• Pregnancy and lactation.