Mucosal morphology in Barrett’s esophagus: interobserver agreement and role of narrow band imaging

Curvers, Wouter L.; Böhmer, Clarisse J M; Mallant-Hent, Rosalie C.; Naber, A.H.J.; Ponsioen, Cyriel; Ragunath, Krish; Singh, Rajvinder; Wallace, Michael B.; Wolfsen, Herbert C.; Song, Louis M. Wong Kee; Lindeboom, Robert; Fockens, Paul; Bergman, Jacques J.G.H.M.

doi:10.1055/s-2008-1077596

Cited by 100 publications

(68 citation statements)

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“…Adenocarcinoma, which accounts for 50% or more of cases in Europe and the United States, 14 can be identified by pit pattern classification. 15,16 The prevalence of Barrett's esophagus is lower in Japan than in Europe and the United States, and squamous cell carcinoma accounts for 90% of esophageal cancer. 1 The intrapapillary capillary loop ͑IPCL͒ is commonly observed in squamous cell carcinoma derived from the squamous epithelium with little or no glandular structure.…”

Section: Discussionmentioning

confidence: 99%

Objective evaluation of visibility in virtual chromoendoscopy for esophageal squamous carcinoma using a color difference formula

et al. 2010

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Abstract. Computed virtual chromoendoscopy with flexible spectral imaging color enhancement ͑FICE͒ is a new dyeless imaging technique that enhances mucosal and vascular patterns. However, a method for selecting a suitable wavelength for a particular condition has not been established. The aim of this study is to evaluate the color difference method for quality assessment of FICE images of the intrapapillary capillary loop in magnifying endoscopy for esophageal squamous cell carcinoma. The color difference between 60 microvessels and background mucosa observed using the magnifying endoscope was 8.31± 2.84 SD under white light and 12.26± 3.14 ͑p = 0.0031͒, 11.70± 4.49 ͑p = 0.0106͒, and 17.49± 5.40 ͑p Ͻ 0.0001͒ in FICE modes A, B, and C, respectively. The visibility scores for microvessels observed by medical students were 6.00± 1.12 points under white light and 11.1± 2.25 ͑p Ͻ 0.0001͒, 8.65± 2.06 ͑p = 0.0001͒, and 12.55± 2.56 ͑p Ͻ 0.0001͒ in FICE modes A, B, and C, respectively. Furthermore, the measurement of color difference was correlated with the visibility score assigned by medical students ͑Pear-son's correlation coefficient= 0.583, p Ͻ 0.0001͒ In conclusion, the color difference method corresponds to human vision and is an appropriate method for evaluation of endoscopic images.

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Section: Discussionmentioning

confidence: 99%

Objective evaluation of visibility in virtual chromoendoscopy for esophageal squamous carcinoma using a color difference formula

et al. 2010

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“…Similar results were found by Curvers et al [44] . Moreover, poor inter-observer agreements have been reported in some reports [44][45][46] . In a recent study, Silva et al [47] evaluated the accuracy and inter-observer agreement of different classification systems grading BE using magnification endoscopy and narrow band imaging.…”

Section: Advanced Endoscopic Imaging Techniquesmentioning

confidence: 99%

“…RFA has a similar efficacy to PDT, but gives less patient inconvenience and fewer side effects [46] . It is important to note that recurrence of intestinal metaplasia following endoscopic eradication therapy and the risk of squamous glands are associated with all ablative therapies and routine surveillance of these patients is required [17] .…”

Section: Hgdmentioning

confidence: 99%

“…Although initial studies are promising, none of these techniques has yet been shown to provide sufficient additional clinical information (beyond that of high resolution white light endoscopy) to justify its routine application for surveillance purposes. A thorough examination using high resolution white light endoscopy after clearing the mucosa with mucolytics should be the minimum standard to improve detection during Barrett's surveillance [2,[44][45][46][47] . There is convincing evidence that biopsy guided by mucosal appearance, observing surface details, using high resolution endoscopes, is now substantially more sensitive for dysplasia and EAC detection than biopsies taken according to the Seattle Protocol [2] .…”

Section: Advanced Endoscopic Imaging Techniquesmentioning

confidence: 99%

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Diagnosis and management of Barrett’s metaplasia: What’s new

Segal

Breyer²

2012

WJGE

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Barrett's esophagus (BE) is a complication of gastroesophageal reflux disease, and a premalignant lesion for esophageal adenocarcinoma (EAC). Observational studies suggest that endoscopic surveillance is associated with the detection of dysplasia and EAC at an early stage along with improved survival, but controversies still remain. The management of patients with BE involves endoscopic surveillance, preventive and clinical measures for cancer, and endoscopic and surgical approaches to treatment. Deciding upon the most appropriate treatment is a challenge. This study presents the results and the effectiveness of these practices.

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“…Although some reports have shown superiority of NBI over WLE (51), it has not improved interobserver agreement or yield of detecting early neoplasia in BE when compared with HRE (39,(52)(53)(54).…”

Section: Chromoendoscopy and Narrow Band Imaging (Nbi)mentioning

confidence: 99%