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Magnifying endoscopy with narrow-band imaging (ME-NBI) can emphasize surface pattern and microvascular architecture of the gastric mucosa.However,the usefulness and criteria of NBI for differential diagnosis among early gastric cancers (EGC) have not been fully established.The study is based on the hypothesis:
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| Measure | Description | Time Frame |
|---|---|---|
| diagnosis accuracy of ME-NBI | ME-NBI diagnosis was made during real-time endoscopy procedure and reviewed in two weeks after ME-NBI examination. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of ME-NBI diagnosis compared with histology were measured. | in 2 weeks after ME-NBI examination |
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Inclusion Criteria:
Exclusion Criteria:
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patients with gastric lesions suspected of early gastric malignancy
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| Name | Affiliation | Role |
|---|---|---|
| Xiaobo Li, MD. Ph.D | Shanghai Ren Ji Hospital | Principal Investigator |
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| ID | Term |
|---|---|
| D013274 | Stomach Neoplasms |
| ID | Term |
|---|---|
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
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Samples after biopsy or resection are to be retained.
| D004066 |
| Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D013272 | Stomach Diseases |