Morphological Differences of Colorectal Polyps Under NBI Endoscopy and Their Diagnostic Value in Polyp Characterization
Objective:To investigate the morphological differences of colorectal polyps under Narrow Band Imaging(NBI)endoscopy and evaluate their diagnostic value in distinguishing the nature of polyps.Methods:A total of 126 patients(768 polyps)diagnosed with colorectal polyp-like lesions during colonosco-py from February 2021 to February 2023 at the First Hospital of Qiqihar were included.The size,morphology,and surface mucosa of polyps were analyzed.Polyps were classified into non-neoplastic polyps and adenomas based on pathological results.The diagnostic value of the NICE classification in determining polyp nature was calculated,and ROC curves were plotted.Results:The proportion of polyps with a diameter≥1.0 cm in high-grade epithelial dysplasia adenomas was significantly higher than in tubular adenomas,inflammatory pol-yps,and hyperplastic polyps(P<0.003).The proportion of polyps with a diameter≥1.0 cm in tubular-vil-lous adenomas was significantly higher than in inflammatory polyps and hyperplastic polyps(P<0.003).The proportion of polyps with a diameter≥1.0 cm in tubular-villous adenomas was significantly higher than in in-flammatory polyps(P<0.003).The Yamada classification of high-grade epithelial dysplasia adenomas dif-fered significantly from that of villous adenomas and hyperplastic polyps(P<0.003).The proportion of lobu-lated polyps in villous adenomas was significantly higher than in tubular adenomas,high-grade epithelial dys-plasia adenomas,inflammatory polyps,tubular-villous adenomas,and hyperplastic polyps(P<0.003).The percentage of polyps with smooth mucosal surfaces in tubular adenomas,inflammatory polyps,tubular-villous adenomas,and hyperplastic polyps was significantly higher than in villous adenomas and high-grade epithelial dysplasia adenomas(P<0.003).The sensitivity,specificity,missed diagnosis rate,and misdiagnosis rate of NICE classification in determining the nature of colorectal polyps were 88.62%,90.94%,11.38%,and 9.06%,respectively.Conclusion:Under NBI,there are significant differences in the morphological character-istics,size and surface mucosal characteristics of colorectal polyps in different pathological types,and NBI ex-amination has a high clinical application value in the differential diagnosis of colorectal polyps.
国家科技期刊平台
NSTL
万方数据
维普
