Esophageal lesions
Conditions
Interventions
Gold Standard:All images of superficial or advanced ESCC were confirmed histologically. Esophageal varices, esophageal scars, reflux esophagitis, normal esophageal mucosa, and parts of the esophageal
Index test:Artificial 
intelligence 
system
Sponsors
West China Hospital, Sichuan University
Eligibility
Sex/Gender
All
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: From January 2008 to February 2019, we retrospectively obtained esophageal images from West China Hospital of Sichuan University. Pictures including esophagitis, esophageal varices, esophageal submucosal protuberances lesions, superficial esophageal squamous cell carcinoma (ESCC), advanced esophageal squamous cell carcinoma, and esophageal scar. All images of superficial or advanced ESCC were confirmed histologically. Esophageal varices, esophageal scars, reflux esophagitis, normal esophageal mucosa, and parts of the esophageal submucosal protuberances were substantiated by three well-experienced endoscopists with more than 25 years experience; the other parts of the esophageal submucosal protuberances were confirmed by EUS.
Exclusion criteria
Exclusion criteria: We excluded poor quality images resulting from blur, defocus, halation, blood, and mucus. Magnified images, Lugos liquid staining images, and endoscopic ultrasound (EUS) images were also excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Sensitivity;Specificity;Diagnostic accuracy; | — |
Secondary
| Measure | Time frame |
|---|---|
| Positive predict value;Negative predict value;Positive likelihood ratio;Negative likelihood ratio; | — |
Countries
China
Contacts
Public ContactYang Jinlin
West China Hospital, Sichuan University
Outcome results
None listed