Abstract:
BACKGROUND:Diagnosis of eosinophilic esophagitis (EoE) requires quantification of esophageal eosinophilia. AIMS:The aims of this study were to assess inter- and intraobserver reliability for measuring esophageal eosinophil counts and to validate a novel method of determining tissue eosinophil density using digitized histopathology slides. METHODS:Patients were selected from the University of North Carolina EoE clinicopathologic database. Glass slides were de-identified and scanned to create digitized slides. Using a set protocol, 40 slides were read by each of three pathologists for interobserver measures, and were also reread by one pathologist as traditional glass slides. Different sets of 20 unique slides were read twice by each pathologist for intraobserver measures. Correlation and agreement were calculated with Pearson's rho and the kappa statistic. RESULTS:There was excellent correction between digitized images and glass slides (r = 0.91-0.95, P < 0.001). For maximum eosinophil densities, interobserver correlations were 0.91, 0.76, and 0.79. For mean densities, interobserver correlations were 0.90, 0.89, and 0.85. Intraobserver correlations for maximum densities were 0.99, 0.94, and 0.96, and for mean densities were 0.97, 0.87, and 0.89 (P < 0.001 for all correlations). Agreement was in the "substantial" to "near-perfect" range for pathologists using several diagnostic cut-points for EoE. CONCLUSIONS:Both inter- and intraobserver correlations were excellent for determining eosinophil densities and counts. A method of using digitized slides was valid when compared with traditional glass slides. This protocol could be adopted for research and clinical purposes to further standardize the diagnostic process for EoE.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Dellon ES,Fritchie KJ,Rubinas TC,Woosley JT,Shaheen NJdoi
10.1007/s10620-009-1005-zsubject
Has Abstractpub_date
2010-07-01 00:00:00pages
1940-9issue
7eissn
0163-2116issn
1573-2568journal_volume
55pub_type
杂志文章abstract:BACKGROUND:Hepatitis C virus (HCV) recurrence after liver transplantation (LT) is universal and tends to be more aggressive. Data on post-transplant HCV genotype 4 treatment is scarce. The aim of this study is to assess the safety and efficacy of pegylated interferon alpha-2a (PEG-IFN) in combination with ribavirin in ...
journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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abstract::Tacrolimus, a relatively new therapeutic option for patients with corticosteroid-refractory Crohn's disease or ulcerative colitis, is a substrate for the apically directed efflux transporter P-glycoprotein (P-gp). Duodenal biopsy specimens obtained from a patient with corticosteroid-refractory Crohn's disease and with...
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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doi:10.1007/BF01536767
更新日期:1990-02-01 00:00:00
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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pub_type: 指南,杂志文章,实务指引
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journal_title:Digestive diseases and sciences
pub_type: 临床试验,杂志文章,随机对照试验
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abstract::Intestinal mast cells are thought to contribute to the mucosal inflammation in ulcerative colitis and Crohn's disease through release of inflammatory mediators. Since sulfasalazine and its metabolite 5-aminosalicylic acid are effective therapeutic agents in inflammatory bowel disease and have been shown to inhibit gen...
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abstract::The purpose of this study was to evaluate the inhibitory activity of selenium-enriched probiotics against pathogenic Escherichia coli (E. coli) in vitro and in vivo. Escherichia coli was co-cultured in vitro with each probiotic strain individually, and a mixture of the four strains and its population was counted at va...
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更新日期:2011-12-01 00:00:00
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更新日期:2019-11-01 00:00:00