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 - 12/02/14
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.
Le texte complet de cet article est disponible en PDF.Abbreviations : DVD, FICE, NBI
Plan
| DISCLOSURE: This work was supported by the Michael V. Sivak, Jr., MD, Endoscopic Research Award and the Endoscopic Research Career Development Award from theAmerican Society for Gastrointestinal Endoscopyto A. Rastogi. A. Rastogi also received a research grant from Olympus America. E. Dekker received equipment on loan and research support from Olympus. T. Kaltenbach received a research grant from and is a consultant for Olympus America. P. Sharma received a research grant from Olympus America. All other authors disclosed no financial relationships relevant to this publication. |
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| See CME section; p. 498. |
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| If you would like to chat with an author of this article, you may contact Dr Rastogi at [email protected]. |
Vol 79 - N° 3
P. 390-398 - mars 2014 Retour au numéro
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