Gastric cancer and its precancerous lesions
Conditions
Interventions
Gold Standard:Patients with pathological diagnosis of early gastric cancer (including high-grade intraepithelial neoplasia), low-grade intraepithelial neoplasia, intestinal metaplasia,and chronic gast
Index test:Criteria for the completion of the study: researchers include sufficient sample size, establish an AI-assisted diagnostic system, and verify that it has good diagnostic effects.
1. ME-NBI i
Sponsors
Shanghai General Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: Eligible subjects to be included in this study had to meet all of the following criteria: 1. Patients with superficial gastric mucosal lesions on ME-NBI endoscopy 2. Early gastric cancer (including high-grade intraepithelial neoplasia) confirmed by pathology), low-grade intraepithelial neoplasia, intestinal metaplasia, or chronic gastritis 3. ME-NBI images contained intact lesions 4. Have complete pathological images
Exclusion criteria
Exclusion criteria: Subjects who met any of the following criteria were not eligible for inclusion in this study. 1. Lack of pathological images corresponding to ME-NBI images 2. The image quality of ME-NBI was poor, such as out of focus, bleeding, mucus attachment, etc. 3. Esophageal and duodenal lesions.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| accuracy;sensitivity;specificity;receiver operating characteristic curve, ROC curve;kappa-test; | — |
Secondary
| Measure | Time frame |
|---|---|
| positive predictive value;negative predictive value; | — |
Countries
China
Contacts
Public ContactHui Zhou
Shanghai General Hospital
Outcome results
None listed