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Application of colon capsule endoscopy (CCE) to evaluate the whole gastrointestinal tract: a comparative study of single-camera and dual-camera analysis
Authors Remes-Troche JM , Jiménez-García VA, García-Montes JM, Hergueta-Delgado P, Roesch-Dietlen F, Herrerías-Gutiérrez JM
Received 14 March 2013
Accepted for publication 7 July 2013
Published 18 September 2013 Volume 2013:6 Pages 185—192
DOI https://doi.org/10.2147/CEG.S45215
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 4
José María Remes-Troche,1 Victoria Alejandra Jiménez-García,2 Josefa María García-Montes,2 Pedro Hergueta-Delgado,2 Federico Roesch-Dietlen,1 Juan Manuel Herrerías-Gutiérrez2
1Digestive Physiology and Motility Lab, Medical Biological Research Institute, Universidad Veracruzana, Veracruz, México; 2Gastroenterology Service, Virgen Macarena University Hospital, Seville, Spain
Background and study aims: Colon capsule endoscopy (CCE) was developed for the evaluation of colorectal pathology. In this study, our aim was to assess if a dual-camera analysis using CCE allows better evaluation of the whole gastrointestinal (GI) tract compared to a single-camera analysis.
Patients and methods: We included 21 patients (12 males, mean age 56.20 years) submitted for a CCE examination. After standard colon preparation, the colon capsule endoscope (PillCam Colon™) was swallowed after reinitiation from its “sleep” mode. Four physicians performed the analysis: two reviewed both video streams at the same time (dual-camera analysis); one analyzed images from one side of the device (“camera 1”); and the other reviewed the opposite side (“camera 2”). We compared numbers of findings from different parts of the entire GI tract and level of agreement among reviewers.
Results: A complete evaluation of the GI tract was possible in all patients. Dual-camera analysis provided 16% and 5% more findings compared to camera 1 and camera 2 analysis, respectively. Overall agreement was 62.7% (kappa = 0.44, 95% CI: 0.373–0.510). Esophageal (kappa = 0.611) and colorectal (kappa = 0.595) findings had a good level of agreement, while small bowel (kappa = 0.405) showed moderate agreement.
Conclusion: The use of dual-camera analysis with CCE for the evaluation of the GI tract is feasible and detects more abnormalities when compared with single-camera analysis.
Keywords: capsule endoscopy, colon, gastrointestinal tract, small bowel
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