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Volume 155, Issue 4, Pages e8 (October 2018)

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1 Volume 155, Issue 4, Pages 1069-1078.e8 (October 2018)
Deep Learning Localizes and Identifies Polyps in Real Time With 96% Accuracy in Screening Colonoscopy  Gregor Urban, Priyam Tripathi, Talal Alkayali, Mohit Mittal, Farid Jalali, William Karnes, Pierre Baldi  Gastroenterology  Volume 155, Issue 4, Pages e8 (October 2018) DOI: /j.gastro Copyright © 2018 AGA Institute Terms and Conditions

2 Gastroenterology 2018 155, 1069-1078. e8DOI: (10. 1053/j. gastro. 2018
Copyright © 2018 AGA Institute Terms and Conditions

3 Figure 1 Examples of dataset. (Top row) Images containing a polyp with a superimposed bounding box. (Bottom row) Non-polyp images. Three pictures on the left were taken using NBI and 3 pictures on the right include tools (eg, biopsy forceps, cuff devices, etc) that are commonly used in screening colonoscopy procedures. Gastroenterology  , e8DOI: ( /j.gastro ) Copyright © 2018 AGA Institute Terms and Conditions

4 Figure 2 Representative frame shots of CNN-overlaid colonoscopy videos. Presence of a green box indicates that a polyp is detected with greater than 95% confidence by our CNN polyp localization model; the location and size of the box are predictions of the CNN model. Expert confidence that the box contained a true polyp is shown in the upper left of the images (video collages of CNN localization predictions available at: Gastroenterology  , e8DOI: ( /j.gastro ) Copyright © 2018 AGA Institute Terms and Conditions

5 Supplementary Figure 1 Effect of the size of the filtering window on the sensitivity and specificity of CNN predictions using a fixed threshold of 0.4. Gastroenterology  , e8DOI: ( /j.gastro ) Copyright © 2018 AGA Institute Terms and Conditions

6 Supplementary Figure 2 Receiver operator characteristic curve for all 5 CNN architectures trained on subsets of the 8641 colonoscopy images. Results obtained on the test splits of the 8641 colonoscopy images. Gastroenterology  , e8DOI: ( /j.gastro ) Copyright © 2018 AGA Institute Terms and Conditions


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