colon polyp
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: adult patients for screening and diagnostic colonoscopy 18-75 years old
Exclusion criteria
Exclusion criteria: 1. history of colon cancer, colon surgery,familial adenomatous polyposis, inflamatory bowel disease, lower intestinal bleeding; 2. Patients with biopsy contraindications; 3. colonoscopy procedures that failed to insert to cecum; 4. difficult procedures(insertion time >7 minutes); 5. with severe complications of cardiovascular and respiratory system and cachexy patients who can stand a long-duration colonoscopy.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| adenoma miss rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| polyp miss rate; | — |
Countries
China
Contacts
Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital