基于X射线光栅相位衬度的鲫鱼无损成像研究

摘要

Recently,grating-based phase contrast X-ray imaging has become a hot spot,and it is considered the key technology for future clinical medical nondestructive diagnosis due its high compatibility with the conventional X ray source.Compared with the existing X-ray absorption contrast imaging technology,phase-contrast imaging has the unique ability to distinguish soft tissues.Here the grating-based phase contrast X-ray imaging was used to nondestructively detect the structure of local crucian carp treated by technology.formalin.The structure of the intestine tissues are shown clearly,the very first time using such imaging techmology.%近年来,光栅相位衬度成像成为当前X射线成像学界的研究热点,因其与传统X光源的高度兼容性而被认为是未来临床医学无损诊断的关键技术.与现有X射线吸收衬度成像技术相比,相位衬度成像技术对软组织具有不可替代的分辨能力.基于几何投影的X射线光栅相位衬度成像技术,无损研究了本地鲫鱼的鱼体结构,利用福尔马林溶液处理样品,发现成像结果清楚地显示出鱼肠组织的结构.这是第一次利用X射线光栅相位衬度成像技术观察到鱼肠组织.