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The aim of this study is to evaluate the usefulness of magnifying colonoscopy with narrow band imaging.
The accuracy of histologic prediction for the colorectal polyps with the use of narrow band imaging is evaluated between the test group with magnifying colonoscopy and the control group without magnifying colonoscopy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| control group | No Intervention | histologic prediction only with the narrow band imaging (without magnification) | |
| test group | Other | histologic prediction with narrow band imaging plus magnification |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| NBI with magnification | Device | After randomization of the subjects into two groups(1) NBI with magnification, 2) without magnification), one experienced endoscopist records its site, size, shape, and predicted histologic diagnosis on the every polyp observed and endoscopically resected. Two groups will be compared with each other. |
| Measure | Description | Time Frame |
|---|---|---|
| Accuracy of colorectal polyp histologic prediction with NBI colonoscopy plus magnification | After radomization of the subjects into two groups(1) NBI with magnification, 2) without magnification), one experienced endoscopist records its site, size, shape, and predicted histologic diagnosis on the every polyp observed and endoscopically resected. After 1 week, confirmed pathologic diagnosis and predicted histologic diagnosis based on endoscopic observation are compared and its accuracy is evaluated. | After 1 week |
| Measure | Description | Time Frame |
|---|---|---|
| Sensitivity of the endoscopic histologic prediction with NBI plus magnification | Endoscopically predicted histologic diagnosis compared with confirmed pathologic diagnosis are evaluated in terms of sensitivity. | 1 Week |
| Specificity of the endoscopic histologic prediction with NBI plus magnification |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Kyoung Sup Hong, MD | SNUH Internal Medicine | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| SNUH | Jongno-gu | Seoul | 110-744 | South Korea |
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| ID | Term |
|---|---|
| D007417 | Intestinal Polyps |
| ID | Term |
|---|---|
| D011127 | Polyps |
| D020763 | Pathological Conditions, Anatomical |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| D062048 | Narrow Band Imaging |
| ID | Term |
|---|---|
| D061848 | Optical Imaging |
| D003952 | Diagnostic Imaging |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
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|
|
Endoscopically predicted histologic diagnosis compared with confirmed pathologic diagnosis are evaluated in terms of specificity. |
| 1 Week |
| Positive predictive value of the endoscopic histologic prediction with NBI plus magnification | Endoscopically predicted histologic diagnosis compared with confirmed pathologic diagnosis are evaluated in terms of positive predictive value. | 1 Week |
| Negative predictive value of the endoscopic histologic prediction with NBI plus magnification | Endoscopically predicted histologic diagnosis compared with confirmed pathologic diagnosis are evaluated in terms of negative predictive value. | 1 Week |
| D008919 |
| Investigative Techniques |