γ相机平面成像的位置校正  

The Correction of Spatial Position in Gamma Ray Imaging

作　　者：谢永岗[1] 鲁向[2] 

机构地区：[1]广州有色金属研究院,广东广州510651 [2]首都医科大学生物医学工程学院,北京100069

出　　处：《广东交通职业技术学院学报》2008年第1期62-64,82,共4页Journal of Guangdong Communication Polytechnic

摘　　要：核医学图像是功能成像,被广泛地运用于癌症的诊断、脑功能的研究以及心脏病的研究等各个方面。而核医学仪器的图像校正和质量控制对于提高核医学图像的质量至关重要。核医学仪器采集的图像如不经过校正,则不能提供正确的信息。通过位置校正能实现位置信息与能量信息的分离。Nuclear medical imaging is functional imaging,which is broadly used in all kinds of fields,such as the detection of cancer, the studying of functional brain and the studying of cardiopathy. The primitive imaging obtained by nuclear medical instrument can not provide right information without correction.The＇position information of an emitted event has close relation with the energy information of it. We separate position information from energy information by position correction. Scatter photon can make distortion of the position of detected events.

关 键 词：γ光子 核医学仪器 光电倍增管 校正 质量控制 

分 类 号：R445[医药卫生—影像医学与核医学]