CC BY-NC-ND 4.0 · Endosc Int Open 2021; 09(02): E263-E270
DOI: 10.1055/a-1321-1317
Original article

Improvement in adenoma detection using a novel artificial intelligence-aided polyp detection device

Aasma Shaukat
1   University of Minnesota – GI, Minneapolis, Minnesota, United States
,
Daniel Colucci
2   Iterative Scopes, Cambridge, Massachusetts, United States
,
Lavi Erisson
2   Iterative Scopes, Cambridge, Massachusetts, United States
,
Sloane Phillips
2   Iterative Scopes, Cambridge, Massachusetts, United States
,
Jonathan Ng
2   Iterative Scopes, Cambridge, Massachusetts, United States
,
Juan Eugenio Iglesias
2   Iterative Scopes, Cambridge, Massachusetts, United States
3   University College London – European Research Council, London, United Kingdom
4   Massachusetts General Hospital – Martinos Center for Biological Imaging, Boston, Massachusetts, United States
5   Massachusetts Institute of Technology – MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, Massachusetts, United States
,
John R. Saltzman
6   Brigham and Women’s Hospital – Gastroenterology, Boston, Massachusetts, United States
,
Samuel Somers
7   Concord Hospital – Gastroenterology, Concord, New Hampshire, United States
,
William Brugge
8   Mount Auburn Hospital – Gastroenterology, Cambridge, Massachusetts, United States
› Author Affiliations

Abstract

Background and study aims Detecting colorectal neoplasia is the goal of high-quality screening and surveillance colonoscopy, as reflected by high adenoma detection rate (ADR) and adenomas per colonoscopy (APC). The aim of our study was to evaluate the performance of a novel artificial intelligence (AI)-aided polyp detection device, Skout, with the primary endpoints of ADR and APC in routine colonoscopy.

Patients and methods We compared ADR and APC in a cohort of outpatients undergoing routine high-resolution colonoscopy with and without the use of a real-time, AI-aided polyp detection device. Patients undergoing colonoscopy with Skout were enrolled in a single-arm, unblinded, prospective trial and the results were compared with a historical cohort. All resected polyps were examined histologically.

Results Eighty-three patients undergoing screening and surveillance colonoscopy at an outpatient endoscopy center were enrolled and outcomes compared with 283 historical control patients. Overall, ADR with and without Skout was 54.2 % and 40.6 % respectively (P = 0.028) and 53.6 % and 30.8 %, respectively, in screening exams (P = 0.024). Overall, APC rate with and without Skout was 1.46 and 1.01, respectively, (P = 0.104) and 1.18 and 0.50, respectively, in screening exams (P = 0.002). Overall, true histology rate (THR) with and without Skout was 73.8 % and 78.4 %, respectively, (P = 0.463) and 75.0 % and 71.0 %, respectively, in screening exams (P = 0.731).

Conclusion We have demonstrated that our novel AI-aided polyp detection device increased the ADR in a cohort of patients undergoing screening and surveillance colonoscopy without a significant concomitant increase in hyperplastic polyp resection. AI-aided colonoscopy has the potential for improving the outcomes of patients undergoing colonoscopy.



Publication History

Received: 04 August 2020

Accepted: 20 October 2020

Article published online:
03 February 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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Rüdigerstraße 14, 70469 Stuttgart, Germany

 
  • References

  • 1 Zauber AG, Winawer SJ, O'Brien MJ. et al. Colonoscopic polypectomy and long-term prevention of colorectal-cancer deaths. N Engl J Med 2012; 366: 687-696
  • 2 Nishihara R, Wu K, Lochhead P. et al. Long-term colorectal-cancer incidence and mortality after lower endoscopy. N Engl J Med 2013; 369: 1095-1105
  • 3 Corley DA, Levin TR, Doubeni CA. Adenoma detection rate and risk of colorectal cancer and death. N Engl J Med 2014; 370: 2541
  • 4 Kaminski MF, Wieszczy P, Rupinski M. et al. Increased rate of adenoma detection associates with reduced risk of colorectal cancer and death. Gastroenterology 2017; 153: 98-105
  • 5 Kaminski MF, Regula J, Kraszewska E. et al. Quality indicators for colonoscopy and the risk of interval cancer. N Engl J Med 2010; 362: 1795-1803
  • 6 Shaukat A, Oancea C, Bond JH. et al. Variation in detection of adenomas and polyps by colonoscopy and change over time with a performance improvement program. Clin Gastroenterol Hepatol 2009; 7: 1335-1340
  • 7 Aniwan S, Orkoonsawat P, Viriyautsahakul V. et al. The secondary quality indicator to improve prediction of adenoma miss rate apart from adenoma detection rate. Am J Gastroenterol 2016; 111: 723-729
  • 8 Zhao S, Wang S, Pan P. et al. Magnitude, risk factors, and factors associated with adenoma miss rate of tandem colonoscopy: a systematic review and meta-analysis. Gastroenterology 2019; 156: 1661-1674.e11
  • 9 Sweetser S, Jones A, Smyrk TC. et al. Sessile serrated polyps are precursors of colon carcinomas with deficient DNA mismatch repair. Clin Gastroenterol Hepatol 2016; 14: 1056-1059
  • 10 Ma MX, Bourke MJ. Sessile serrated adenomas: how to detect, characterize and resect. Gut Liver 2017; 11: 747-760
  • 11 Wang P, Liu X, Berzin TM. et al. Effect of a deep-learning computer-aided detection system on adenoma detection during colonoscopy (CADe-DB trial): a double-blind randomised study. Lancet Gastroenterol Hepatol 2020; 5: 343-351
  • 12 Gong D, Wu L, Zhang J. et al. Detection of colorectal adenomas with a real-time computer-aided system (ENDOANGEL): a randomised controlled study. Lancet Gastroenterol Hepatol 2020; 5: 352-361
  • 13 Anderson JC, Robinson CM, Butterly LF. Increased risk of metachronous large serrated polyps in individuals with 5 to 9 mm proximal hyperplastic polyps: data from the New Hampshire Colonoscopy Registry. Gastrointest Endosc 2020; 92: 387-393
  • 14 Campbell I. Chi-squared and Fisher-Irwin tests of two-by-two tables with small sample recommendations. Stat Med 2007; 26: 3661-3675
  • 15 Fedewa SA, Anderson JC, Robinson CM. et al. Prevalence of “one and done” in adenoma detection rates: results from the New Hampshire Colonoscopy Registry. Endosc Int Open 2019; 7: E1344-E1354
  • 16 Wang P, Berzin TM, Glissen Brown JR. et al. Real-time automatic detection system increases colonoscopic polyp and adenoma detection rates: a prospective randomised controlled study. Gut 2019; 68: 1813-1819
  • 17 Zhou G, Xiao X, Tu M. et al. Computer aided detection for laterally spreading tumors and sessile serrated adenomas during colonoscopy. PLoS ONE 2020; 15: e0231880
  • 18 Lam AY, Li Y, Gregory DL. et al. Association between improved adenoma detection rate and interval colorectal cancer rates after a quality improvement program. Gastrointest Endosc 2020; 92: 355-364.e5