Patients who had previously upper gastrointestinal epithelial neoplasia pharyngeal neoplasia, esophageal neoplasia, gastric neoplasia
Conditions
Interventions
endoscopy equipment used (LCI or NBI)
Sponsors
Ono Shoko
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Patients who receive surveilance endpscopy during study period.
Exclusion criteria
Exclusion criteria: Patients who can not receive biopsy Patients for whom consent cannot be obtained Patients who cannot confirm intention due to dementia or consciousness disorder Patients who are judged to be inappropriate subjects by reseachers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To verify whether the ratio of the number of diagnosed epithelial neoplastic lesions including the pharynx, esophagus and stomach by LCI observation is significantly higher than that by NBI observation. | — |
Secondary
| Measure | Time frame |
|---|---|
| Ratio of the number of diagnosed neoplastic lesions with WLI Ratio of the patients of diagnosed neoplastic lesions with WLI in LCI group and NBI group Ratio of the patients of diagnosed neoplastic lesions by site Ratio of the patients of diagnosed neoplastic lesions by size Ratio of the patients of diagnosed neoplastic lesions by morphorogy Obsevation time Serious adverse events Diagnostic accuracy of GI neoplasia Ratio of the number of diagnosed neoplastic lesions with experts and non-experts | — |
Contacts
Public ContactShoko Ono
Hokkaido University Hospital
Outcome results
None listed