None listed
Conditions
Interventions
Procedure/Surgery : 1)Randomization for eligible subjects
2)Based on randomization, seleted as the routine colonoscopy group and have colorectal polyps.
: visual estimation of polyp size (colonosco
Sponsors
Yonsei University, Wonju Severance Christian Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: ? Subjects who are aged between 19 and 75 years. ? Subjects who have colorectal polyps during colonoscopy ? Subjects who agree the informed consent
Exclusion criteria
Exclusion criteria: ? Subjects who would not have colorectal polyps during colonoscopy ? Subjects who were registered to other clinical trials. ? Subjects who would be inappropriate by decision of colonoscopist
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| A difference of polyp size between virtual estimation and a measurement by cap-assisted colonoscopy with external grid | — |
Secondary
| Measure | Time frame |
|---|---|
| A difference of polyp size between a measurement by endoscopic forceps and a measurement by cap-assisted colonoscopy with external grid ;A difference of polyp size with virtual estimation between expert colonoscopists and trainees | — |
Countries
Korea, Republic of
Contacts
Public ContactHong Jun Park
Yonsei University, Wonju Severance Christian Hospital
Outcome results
None listed