PET-CT工作原理及应用

目的:PET-CT实现了同机图像融合,是一种功能性医学影像学设备,通过了解其工作原理,掌握设备的日常维护方法,为医学研究和临床诊断提供便利。方法:分别介绍PET与CT两种设备同机组合的不同成像原理以及设备应用时对环境的要求。结果:了解PET-CT的工作原理,掌握一般维护保养项目和方法,使PET-CT融合影像为临床正确确定放疗的计划靶区、检测治疗过程中的疗效提供最佳方案。结论:PET-CT设备的工作状态是否良好与设备的维护保养密不可分。在设备的日常维护过程中要保持设备符合环境要求,工程技术人员必须熟悉设备的各个运行环节,保证设备的正常运转。

Principle and application of PET-CT

Objective：PET-CT is to use to achieve image fusion of PET and CT in the same machine,is functional imaging equipment.With the rapid spread of its application,it goes beyond the existing areas of PET alone and separate CT for medical research and clinical diagnostics,it provides a great convenience.Methods：PET is deferent with CT in the imaging principle,the combination of these two equipment can get the image of anatomical structure,abundant physiological and biochemical functions.It can provide the quantitative,qualitative diagnostic basis for the identify and locate the precise location of tumors.Results：PET-CT fusion images can be used to describe the role of disease on the biochemical processes,identify physiological and pathological uptake.It can detect the early onset of signs of disease anatomical evidence and even very small subclinical tumor correctly.It has an important value in determining the clinical radiotherapy planning target volume,the detection process of treatment drugs and radiation effects to provide the best treatment options to improve the clinical cure rate.Conclusion：The work is in good condition or not determines by the maintenance.Firstly we should clear the equipment requirements of the environment in the process of routine maintenance carefully.Maintain equipment environment requires qualified engineering and technical personnel familiar with every aspect of the usually diligent maintenance,did not miss any possible hazards to more good to ensure that the operation of the equipment.