自体荧光内镜在肿瘤(癌)诊断中的应用研究  

Application study of auto-fluorescence excited by endoscopic laser in the diagnosis of gastric cancer and its precancerosis

作　　者：魏华刚[1] 谢力[1] 景明[1] 

机构地区：[1]山东大学齐鲁医院设备科

出　　处：《实验技术与管理》2009年第10期45-48,共4页Experimental Technology and Management

摘　　要：自体荧光（AFI）可用于识别肿瘤性病变和正常组织。AFI内镜利用蓝色励启光（波长为390-440nm）和绿色光（易受血红蛋白影响，波长为（540-560nm），增强对肿瘤性病变、炎症性病变、正常组织的识别能力。AFI内镜系统对于辨别早期癌变具备积极意义。介绍了AFI的原理、特性和临床应用。Auto fluorescence is used to distinguish moderate dysplasia and normal tissue. The technology takes advantage of the fact that when tumorous tissue is irradiated with blue excitation light, the auto fluorescence produced by collagen and other fluorescent substances is weaker than that produced by normal tissue. AFI supports the early detection of minute lesions and cancerous tissue. It produces enhanced images showing differences in the coloration of tumorous and normal mueosa by irradiating target sites with excitation light （390-440 nm） and light at a wavelength readily absorbed by circulating hemoglobin （540-560nm）

关 键 词：自体荧光 内镜 癌 

分 类 号：R445.9[医药卫生—影像医学与核医学]