Detection of Colorectal Adenoma by Optical Enhancement Technology vs. High-Definition Colonoscopy
Detection of Colorectal Adenoma by Optical Enhancement Technology vs. High-Definition Colonoscopy: A Randomized Trial
Aperçu de l'étude
Statut
Les conditions
Description détaillée
Colorectal cancer is the third most common cancer in the world.Colonoscopy is the gold standard screening test for colorectal cancer.There are also emerging data to support that screening by colonoscopy reduces both the incidence and mortality of colorectal cancer.However,Colonoscopy could still miss colorectal adenomas and even cancer.The miss rate for colonic adenomas was reported to be ranging from 15 to 32% in tandem colonoscopy studies.The reasons for the miss rate may be technical(insufficient during excessively fast instrument withdrawal),but may also be the imaging method.Smaller lesions ,particularly flat ones ,may be missed as a result of their subtle appearance and limited contrast in relation to the surrounding mucosa.
Some image-enhanced modules were developed with an aim to improve colorectal polyp or adenoma detection.The widely available modules is the narrow band imaging(NBI).However,most studies failed to demonstrate any superiority of NBI system over white light colonoscopy in detecting colonic polyps.NBI provides dimmer images of the colonic mucosa ,which may limit its performance on polyp and adenoma detection.
Like NBI,OE technology is image-enhanced module,providing a more intense look at the vascular pattern morphology.Besides,OE technology provides an much brighter image compared to NBI.This may possibly increase polyp detection by enhancing visibility of the colonic mucosa with brighter image.The current study aims to tested whether OE technology would improve adenoma detection when compared with high-definition colonoscopy.
Type d'étude
Inscription (Anticipé)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Shandong
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Jinan, Shandong, Chine, 250012
- Department of Gastroenterology, Qilu Hospital, Shandong University
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Patients were selected if they presented for diagnostic colonoscopy for a variety of indications(eg positive fecal occult blood test, abdominal pain, diarrhoea,post-polypectomy surveillance).
Exclusion Criteria:
- Patients with prior resection of the proximal colon, advanced colonic cancer, inflammatory bowel disease, or polyposis syndrome.
- The cecum could not be intubated.
- Inadequate bowel preparation (Aronchick Bowel Preparation Scale score poor or inadequate).
- Biopsies were not available.
- Unable to provide informed consent.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Seul
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Comparateur actif: Group A
white light was used for both insertion and withdrawal of the colonoscope
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Expérimental: Group B
Insertion to cecum was performed under white light and once the cecum was reached,the OE mode was swithed on during withdrawal of endoscope for complete colonic examination
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
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adenoma detection rate
Délai: 6 months
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6 months
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Directeur d'études: Yanqing Li, MD, PhD, Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
Publications et liens utiles
Publications générales
- Adler A, Pohl H, Papanikolaou IS, Abou-Rebyeh H, Schachschal G, Veltzke-Schlieker W, Khalifa AC, Setka E, Koch M, Wiedenmann B, Rosch T. A prospective randomised study on narrow-band imaging versus conventional colonoscopy for adenoma detection: does narrow-band imaging induce a learning effect? Gut. 2008 Jan;57(1):59-64. doi: 10.1136/gut.2007.123539. Epub 2007 Aug 6.
- Aminalai A, Rosch T, Aschenbeck J, Mayr M, Drossel R, Schroder A, Scheel M, Treytnar D, Gauger U, Stange G, Simon F, Adler A. Live image processing does not increase adenoma detection rate during colonoscopy: a randomized comparison between FICE and conventional imaging (Berlin Colonoscopy Project 5, BECOP-5). Am J Gastroenterol. 2010 Nov;105(11):2383-8. doi: 10.1038/ajg.2010.273. Epub 2010 Jul 13.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 2016SDU-QILU-11
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