Impact of a computer-based teaching module on characterization of diminutive colon polyps by using narrow-band imaging by non-experts in academic and community practice: a video-based study Journal Article

Local Library Link: Find It @ Loyola

Authors: Rastogi, A; Rao, D. S.; Gupta, N; Grisolano, S. W.; Buckles, D. C.; Sidorenko, E.; Bonino, J.; Matsuda, T.; Dekker, E; Kaltenbach, T.; Singh, R.; Wani, S; Sharma, P; Olyaee, M. S.; Bansal, A; East, J. E.
Article Title: Impact of a computer-based teaching module on characterization of diminutive colon polyps by using narrow-band imaging by non-experts in academic and community practice: a video-based study
Abstract: BACKGROUND: Experts can accurately characterize the histology of diminutive polyps with narrow-band imaging (NBI). There are limited data on the performance of non-experts. OBJECTIVE: To assess the impact of a computer-based teaching module on the accuracy of predicting polyp histology with NBI by non-experts (in academics and community practice) by using video clips. DESIGN: Prospective, observational study. SETTING: Academic and community practice. PARTICIPANTS: A total of 15 gastroenterologists participated-5 experts in NBI, 5 non-experts in academic practice, and 5 non-experts in community practice. INTERVENTION: Participants reviewed a 20-minute, computer-based teaching module outlining the different NBI features for hyperplastic and adenomatous polyps. MAIN OUTCOME MEASUREMENTS: Performance characteristics in characterizing the histology of diminutive polyps with NBI by using short video clips before (pretest) and after (posttest) reviewing the teaching module. RESULTS: Non-experts in academic practice showed a significant improvement in the sensitivity (54% vs 79%; P .001), accuracy (64% vs 81%; P .001), and proportion of high-confidence diagnoses (49% vs 69%; P .001) in the posttest. Non-experts in community practice had significantly higher sensitivity (58% vs 75%; P = .004), specificity (76% vs 90%; P = .04), accuracy (64% vs 81%; P .001), and proportion of high-confidence diagnoses (49% vs 72%; P .001) in the posttest. Performance of experts in NBI was significantly better than non-experts in both academic and community practice. LIMITATIONS: Selection bias in selecting good quality videos. Performance not assessed during live colonoscopy. CONCLUSION: Academic and community gastroenterologists without prior experience in NBI can achieve significant improvements in characterizing diminutive polyp histology after a brief computer-based training. The durability of these results and applicability in everyday practice are uncertain.
Journal Title: Gastrointestinal endoscopy
Volume: 79
Issue: 3
ISSN: 1097-6779; 0016-5107
Publisher: Mosby, Inc  
Journal Place: United States
Date Published: 2014
Start Page: 390
End Page: 398
Language: eng
DOI/URL:

10.1016/j.gie.2013.07.032
Notes: CI: Published by Mosby, Inc.; JID: 0010505; 2012/10/25 [received]; 2013/07/17 [accepted]; 2013/09/08 [aheadofprint]; ppublish