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3 lis 2022 · The Z line in the esophagus is the term for a faint zig-zag impression at the gastro-esophageal junction that demarcates the transition between the stratified squamous epithelium in the esophagus and the intestinal epithelium of the gastric cardia (the squamocolumnar junction).
This dataset contains 8 classes (3 normal and 5 diseases) including Cecum, Pylorus, and Z-line (normal); Polyps, Ulcerative colitis, Esophagitis, Dyed-resection-margins, Dyed-lifted-polyps...
This results in the common endoscopic diagnosis of “irregular z-line.” The yield of biopsy of this area to determine the presence of specialized intestinal metaplasia is the subject of this report.
Endoscopic appearance of the Z-line at the gastro-esophageal squamous-columnar junction has been classified as Z-line appearance (ZAP) grading system.1 The four graded ZAP grading system has been shown to correlate with the presence of intestinal metaplasia (IM) and the immunohistochemical cytokeratin 7/20 staining pattern at lower esophagus in ...
26 lip 2022 · The main aim of this study is automatic Z-line extraction using endoscopic images leading to segmentation of the early BE stage. To this end, a computer-aided detection method exploiting k-means clustering, image segmentation using the edge detector, and a novel boundary linking algorithm is proposed.
23 cze 2019 · Z Line The Z line is an irregular serrated line that demarcates the squamocolumnar mucosal junction. The Z line can sometimes be recognized on double-contrast esophagograms as a thin radiolucent stripe in the distal esophagus with a characteristic zigzag appearance ( Fig. 26-2 ).
28 lut 2018 · The Z line demarcates the squamocolumnar junction (SCJ), the transition from the squamous esophageal mucosa to the columnar mucosa lining the stomach, or in cases of Barrett’s esophagus, between the squamous and intestinalized columnar epithelium of the metaplastic segment.
