目的研究放大内镜联合蓝激光成像(magnifying endoscopy with blue laser imaging,ME-BLI)在存在萎缩及肠上皮化生危险因素人群中的诊断价值。方法选取2017年2月至12月于首都医科大学附属北京友谊医院内镜中心就诊,存在萎缩或肠上皮化...目的研究放大内镜联合蓝激光成像(magnifying endoscopy with blue laser imaging,ME-BLI)在存在萎缩及肠上皮化生危险因素人群中的诊断价值。方法选取2017年2月至12月于首都医科大学附属北京友谊医院内镜中心就诊,存在萎缩或肠上皮化生危险因素的患者,进行普通白光内镜及ME-BLI检查及病理组织学检查,评价其诊断的灵敏度、特异度及准确度。结果ME-BLI对于萎缩胃黏膜诊断的灵敏度、特异度、准确度、阳性预测值及阴性预测值分别为93.40%、71.96%、79.02%、62.26%、95.65%;对于肠上皮化生胃黏膜诊断的灵敏度、特异度、准确度、阳性预测值及阴性预测值分别为100%、92.07%、95.94%、92.31%、100%。结论应用ME-BLI对萎缩及肠上皮化生诊断有较好的灵敏度、特异度及准确度。展开更多
Objective： To investigate the existence of pericryptal fibroblasts sheath （PCFS） in normal gastric mucosa, intestinal metaplasia （IM）, indefinite for dysplasia （I-Dys）, low grade dysplasia （L-Dys）, high grade...Objective： To investigate the existence of pericryptal fibroblasts sheath （PCFS） in normal gastric mucosa, intestinal metaplasia （IM）, indefinite for dysplasia （I-Dys）, low grade dysplasia （L-Dys）, high grade dysplasia （H-Dys） and gastric cancer （GC）, and its association with gastric carcinogenesis. Methods： In this study, we examined the existence of PCFS in normal gastric mucosa （N=10）, IM （N=26）, I-Dys （N=16）, L-Dys （N=13）, H-Dys （N=21） and GC （N=145） using immunohistochemical staining for two smooth muscle markers, alpha smooth muscle actin（α-SMA） and high molecular weight caldesmon （h-CD）. The significance of PCFS was discussed, especially in association with gastric carcinogenesis. Results： The PCFS was recognized in 65.4%（17/26） of IM, 62.5%（10/16） of I-Dys and 23.1% （3/13） of L-Dys respectively. No PCFS was detected in H-Dys and GC. The PCFS was gradually reduced in IM, Dys and GC in sequence （P〈0.0001）. Conclusion： The PCFS is associated with the differentiation of epithelium and involved in gastric carcinogenesis via epithelial-mesenchymal interaction.展开更多
文摘目的研究放大内镜联合蓝激光成像(magnifying endoscopy with blue laser imaging,ME-BLI)在存在萎缩及肠上皮化生危险因素人群中的诊断价值。方法选取2017年2月至12月于首都医科大学附属北京友谊医院内镜中心就诊,存在萎缩或肠上皮化生危险因素的患者,进行普通白光内镜及ME-BLI检查及病理组织学检查,评价其诊断的灵敏度、特异度及准确度。结果ME-BLI对于萎缩胃黏膜诊断的灵敏度、特异度、准确度、阳性预测值及阴性预测值分别为93.40%、71.96%、79.02%、62.26%、95.65%;对于肠上皮化生胃黏膜诊断的灵敏度、特异度、准确度、阳性预测值及阴性预测值分别为100%、92.07%、95.94%、92.31%、100%。结论应用ME-BLI对萎缩及肠上皮化生诊断有较好的灵敏度、特异度及准确度。
基金supported in part by the grants from Beijing Municipal Science & Technology commission NOVA program (No.2005B-44)the National"863"High-Tech Res & Dev program of China(No.2006AA02A402)the Major State Basic Research Program of china(No.2004CB518702)
文摘Objective： To investigate the existence of pericryptal fibroblasts sheath （PCFS） in normal gastric mucosa, intestinal metaplasia （IM）, indefinite for dysplasia （I-Dys）, low grade dysplasia （L-Dys）, high grade dysplasia （H-Dys） and gastric cancer （GC）, and its association with gastric carcinogenesis. Methods： In this study, we examined the existence of PCFS in normal gastric mucosa （N=10）, IM （N=26）, I-Dys （N=16）, L-Dys （N=13）, H-Dys （N=21） and GC （N=145） using immunohistochemical staining for two smooth muscle markers, alpha smooth muscle actin（α-SMA） and high molecular weight caldesmon （h-CD）. The significance of PCFS was discussed, especially in association with gastric carcinogenesis. Results： The PCFS was recognized in 65.4%（17/26） of IM, 62.5%（10/16） of I-Dys and 23.1% （3/13） of L-Dys respectively. No PCFS was detected in H-Dys and GC. The PCFS was gradually reduced in IM, Dys and GC in sequence （P〈0.0001）. Conclusion： The PCFS is associated with the differentiation of epithelium and involved in gastric carcinogenesis via epithelial-mesenchymal interaction.
