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Digestion ; 101(5): 598-607, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31302654

RESUMO

BACKGROUND/AIMS: To compare white light imaging (WLI) with linked color imaging (LCI) and blue LASER imaging (BLI) in endoscopic findings of Helicobacter pylori presently infected, previously infected, and uninfected gastric mucosae for visibility and inter-rater reliability. METHODS: WLI, LCI and BLI bright mode (BLI-bright) were used to obtain 1,092 endoscopic images from 261 patients according to the Kyoto Classification of Gastritis. Images were evaluated retrospectively by 10 experts and 10 trainee endoscopists and included diffuse redness, spotty redness, map-like redness, patchy redness, red streaks, intestinal metaplasia, and an atrophic border (52 cases for each finding, respectively). Physicians assessed visibility as follows: 5 (improved), 4 (somewhat improved), 3 (equivalent), 2 (somewhat decreased), and 1 (decreased). Visibility was assessed from totaled scores. The inter-rater reliability (intraclass correlation coefficient) was also evaluated. RESULTS: Compared with WLI, all endoscopists reported improved visibility with LCI: 55.8% for diffuse redness; LCI: 38.5% for spotty redness; LCI: 57.7% for map-like redness; LCI: 40.4% for patchy redness; LCI: 53.8% for red streaks; LCI: 42.3% and BLI-bright: 80.8% for intestinal metaplasia; LCI: 46.2% for an atrophic border. For all endoscopists, the inter-rater reliabilities of LCI compared to WLI were 0.73-0.87. CONCLUSION: The visibility of each endoscopic finding was improved by LCI while that of intestinal metaplasia was improved by BLI-bright.


Assuntos
Mucosa Gástrica/diagnóstico por imagem , Gastrite/diagnóstico , Gastroscopia/métodos , Aumento da Imagem/métodos , Imagem Óptica/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Cor , Feminino , Mucosa Gástrica/patologia , Gastrite/patologia , Gastroscopia/instrumentação , Gastroscopia/estatística & dados numéricos , Humanos , Aumento da Imagem/instrumentação , Masculino , Metaplasia/diagnóstico , Metaplasia/patologia , Pessoa de Meia-Idade , Variações Dependentes do Observador , Imagem Óptica/instrumentação , Imagem Óptica/estatística & dados numéricos , Reprodutibilidade dos Testes , Estudos Retrospectivos , Adulto Jovem
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