共聚焦激光显微内镜对胃癌病理分型的诊断价值

目的建立共聚焦激光显微内镜（CLE）对胃癌病理分型的诊断标准，评价CLE对胃癌病理分型的诊断价值。方法分析行CLE检查且经组织病理证实为胃癌的36例患者的共聚焦图像，建立CLE对胃癌病理分型的诊断标准。根据共聚焦图像上腺体结构的有无和微血管形态的改变，CLE可将胃癌分为分化型和未分化型两种病理类型。以组织病理结果作为金标准，回顾性研究CLE对不同胃癌病理分型诊断的敏感性、特异性和准确性。结果CLE对分化型胃癌的诊断敏感性、特异性和准确性为81．8％、93．5％和88．7％，对未分化型胃癌的诊断敏感性、特异性和准确性为85．7％、92．3％和90．5％。结论共聚焦激光显微内镜对分化型和未分化型胃癌的诊断与组织病理学诊断有良好的一致性，提供了一种于内镜检查同时在体诊断胃癌病理分型的新工具。

Confocal laser endomicroscopy in pathological classifications of gastric cancer in vivo

Objective To establish diagnostic standards of confocal laser endomiroscopy (CLE) in pathological classifications of gastric cancer and evaluate the diagnostic value of CLE in vivo. Methods The confocal images of 36 patients, who were diagnosed as gastric cancer with confirmation of pathology, were collected and analyzed to establish diagnostic standards of CLE for pathological classifications of gastric cancer. The sensitivity, specificity and accuracy of CLE were determined with reference to histopathologic findiugs retrospectively. Results According to changes of glandular architecture and microvessels under CLE, gastric cancers were divided into differentiated and undifferentiated type. The sensitivity, specificity and accuracy of CLE in diagnosing differentiated carcinoma were 85.7%, 92. 3% and 90. 5%, respectively, which were 85.7%, 92. 3% and 90. 5%, respectively, in undifferentiated carcinoma. Conclusion CLE is a new tool to make pathological classifications of gastric cancer during routine endoscopic examination procedure, which correlates well with histopathologic fingdings.