Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The investigators previously reported that colonoscopy with a transparent retractable extension (TRE) device improved the adenoma detection rate without affecting intubation and withdrawal times. On the other hand, colonoscopy using narrow band imaging (NBI) is expected to lead to higher rate s of adenoma detection. The investigators compared the effects of TRE device on colorectal adenoma detection with those of NBI.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 2 | Active Comparator | The investigators evaluate beneficial effect of colonoscopy using narrow band imaging (NBI) for colorectal adenoma detection. |
|
| 1 | Experimental | The investigators evaluate the beneficial effect of colonoscopy with a transparent retractable extension (TRE) device on colorectal adenoma detection rate. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| TRE vs. NBI | Device | TRE NBI |
|
| Measure | Description | Time Frame |
|---|---|---|
| Colorectal adenoma detection rate | after colonoscopy |
| Measure | Description | Time Frame |
|---|---|---|
| Procedure time, complication | after colonoscopy |
Not provided
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Showa Inan General hospital | Komagane | Nagano | 399-4191 | Japan |
Not provided
Not provided
Not provided
Not provided
Not provided