Barrett's neoplasia Digestive System Barrett oesophagus
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age > 18 years 2. Patients with BE referred for endoscopic work-up of HGD or EAC likely to require endoscopic resection (EMR or ESD) 3. Lesions can be completely visualized in a single endoscopic image in overview 4. Lesions in which a type 0-II lesion is the dominant part (the more subtle lesions) 5. Eligible for EMR or ESD 6. Signed informed consent
Exclusion criteria
Exclusion criteria: 1. Prior history of surgical or endoscopic treatment for oesophageal neoplasia 2. Presence of erosive esophagitis (Los Angeles classification =A) 3. Inability to undergo EMR/ESD and/or obtain biopsies (e.g. due to anticoagulation, coagulation disorders, varices)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Experts’ appreciation of macroscopic appearance and surface relief, measured using VAS scores in the first two assessment phases, each separated by a wash-out period of 2 weeks: Phase 1: WLE images only; Phase 2: BLI images only 2. Experts’ ability to delineate the lesion, measured using VAS scores in the first two assessment phases, each separated by a wash-out period of 2 weeks: Phase 1: WLE images only; Phase 2: BLI images only 3. Experts’ preferred technique for macroscopic appearance + surface relief and preferred technique for delineation, measured using ordinal scores in assessment phase 3 (WLE+BLI images), separated from the second assessment phase with a wash-out period of two weeks | — |
Secondary
| Measure | Time frame |
|---|---|
| Experts’ quantitative agreement on lesion delineations, measured using AND/OR scores in all three separate assessment phases, each separated by a wash-out period of 2 weeks: Phase 1: WLE images only; Phase 2: BLI images only; Phase 3: WLE+BLI images | — |
Countries
Belgium, Netherlands