CC BY-NC-ND 4.0 · Endosc Int Open 2021; 09(08): E1255-E1263
DOI: 10.1055/a-1487-5628
Original article

Video clips compared with high-definition still images for characterization of colorectal neoplastic lesions: a randomized comparative prospective study

Lucile Héroin
1  Department of Gastroenterology, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
,
Jérôme Rivory
2  Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
,
Thierry Ponchon
2  Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
,
Romain Legros
3  Gastroenterology and Endoscopy Unit, Dupuytren University Hospital, Limoges, France
,
Jérémie Albouys
3  Gastroenterology and Endoscopy Unit, Dupuytren University Hospital, Limoges, France
,
Stanislas Chaussade
4  Department of Gastroenterology, Cochin Hospital, Paris, France
,
Olivier Gronier
5  Endoscopy and Gastroenterology Unit, Clinique Sainte Barbe, Groupe Hospitalier Saint-Vincent, Strasbourg, France
,
Jean-Marie Reimund
1  Department of Gastroenterology, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
,
Thibaut Fabacher
6  Department of Public Health, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
,
Denis Sautereau
3  Gastroenterology and Endoscopy Unit, Dupuytren University Hospital, Limoges, France
,
Franck Dumeirain
3  Gastroenterology and Endoscopy Unit, Dupuytren University Hospital, Limoges, France
,
Mathieu Pioche
2  Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
,
Jérémie Jacques
3  Gastroenterology and Endoscopy Unit, Dupuytren University Hospital, Limoges, France
,
and the French Society of Digestive Endoscopy (SFED)› Author Affiliations

Abstract

Background and study aims Accurate real-time characterization of colorectal neoplastic lesions (CNLs) during colonoscopy is important for deciding appropriate treatment. No studies have evaluated whether still images or video clips are better for characterization. We compared histological predictions and size estimations of CNLs between two groups of gastroenterologists: one viewing still images and the other viewing video clips.

Materials and methods Participants were shown 20 CNLs as either 3–5 still images or a video clip. Three endoscopy experts obtained the images using high-definition white light and virtual chromoendoscopy without magnification. Stratified randomization was performed according to experience. For each lesion, participants assessed the size and histological subtype according to the CONECCT classification (hyperplastic polyp [IH], sessile serrated lesion [IS], adenoma [IIA], high-risk adenoma or superficial adenocarcinoma [IIC], or deeply invasive adenocarcinoma [III]). The correct histological status and size were defined by the pathology reports or combined criteria between histology and expert opinion for high-risk adenoma or superficial adenocarcinoma (CONECCT IIC).

Results 332 participants were randomized and 233 performed the characterization. Participants comprised 118 residents, 75 gastroenterologists, and 40 endoscopy experts; 47.6 % were shown still images and 52.4 % viewed video clips. There was no statistically significant difference between the two groups in histological prediction, our primary end point. However, the lesion size was better assessed using still images than video clips (P = 0.03).

Conclusions Video clips did not improve the histological prediction of CNLs compared with still images. Size was better assessed using still images.



Publication History

Received: 17 December 2020

Accepted: 14 March 2021

Publication Date:
16 July 2021 (online)

© 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 commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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