Volume 156, Issue 5, Pages e3 (April 2019)

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Volume 156, Issue 5, Pages 1299-1308.e3 (April 2019) An Interactive Web-Based Educational Tool Improves Detection and Delineation of Barrett’s Esophagus–Related Neoplasia Jacques J.G.H.M. Bergman, A. Jeroen de Groof, O. Pech, K. Ragunath, D. Armstrong, N. Mostafavi, L. Lundell, J. Dent, M. Vieth, G.N. Tytgat, P. Sharma Gastroenterology Volume 156, Issue 5, Pages 1299-1308.e3 (April 2019) DOI: 10.1053/j.gastro.2018.12.021 Copyright © 2019 AGA Institute Terms and Conditions

Gastroenterology 2019 156, 1299-1308. e3DOI: (10. 1053/j. gastro. 2018 Copyright © 2019 AGA Institute Terms and Conditions

Figure 1 Flow diagram of video selection for assessment phase 1 and phase 2. Gastroenterology 2019 156, 1299-1308.e3DOI: (10.1053/j.gastro.2018.12.021) Copyright © 2019 AGA Institute Terms and Conditions

Figure 2 Example of a video frame showing a BORN lesion (A) with 3 individual expert delineations (B–D), all 3 expert delineations (E) and the creation of the sweet spot (F). Gastroenterology 2019 156, 1299-1308.e3DOI: (10.1053/j.gastro.2018.12.021) Copyright © 2019 AGA Institute Terms and Conditions

Figure 3 Example of a video frame showing a BORN lesion (A), with a correct biopsy within the sweet spot (B), a delineation overlapping the sweet spot (C), and a delineation overlapping with individual expert delineations (D–F). Gastroenterology 2019 156, 1299-1308.e3DOI: (10.1053/j.gastro.2018.12.021) Copyright © 2019 AGA Institute Terms and Conditions

Supplementary Figure 1 Median scores of all outcome parameters for different levels of endoscopic expertise in phase 1. The gray lines show the scoring for each assessor, the solid blue lines represent median scoring for each outcome over different batches. The black dotted lines show the 25thand 75th percentile scoring for each outcome over different batches. GE, gastroenterologist. Gastroenterology 2019 156, 1299-1308.e3DOI: (10.1053/j.gastro.2018.12.021) Copyright © 2019 AGA Institute Terms and Conditions

Supplementary Figure 2 Median scores of all outcome parameters for different levels of endoscopic expertise in phase 2. The gray lines show the scoring for each assessor, the solid blue lines represent median scoring for each outcome over different batches. The black dotted lines show the 25th and 75th percentile scoring for each outcome over different batches. GE, gastroenterologist. Gastroenterology 2019 156, 1299-1308.e3DOI: (10.1053/j.gastro.2018.12.021) Copyright © 2019 AGA Institute Terms and Conditions