CT能谱成像基本原理及降低辐射剂量新技术  

The principle of CT spectral imaging and current progress in reducing radiation dose

作　　者：郭浩 巴新茹 刘奉立[1] 公佩友[1] GUO Hao;BA Xinru;LIU Fengli;GONG Peiyou(The Radiology Department of Yantai Yuhuangding Hospital,Yantai 264000,P.R.China;The Radiology Department of Yantaishan Hospital,Yantai 264000,P.R.China)

机构地区：[1]山东省烟台毓璜顶医院影像科,山东烟台264000 [2]山东省烟台市烟台山医院影像科,山东烟台264000

出　　处：《医学影像学杂志》2018年第8期1394-1397,共4页Journal of Medical Imaging

基　　金：山东省自然科学基金(编号:ZR2017LH053)

摘　　要：CT能谱成像作为一种全新的成像模式,不但成为业内研究的热点,而且已广泛用于全身各系统病变的诊断,其在降低CT辐射剂量方面的价值也得到了一定的认可。本文就CT能谱成像设备组成、成像原理、图像特点和在降低辐射剂量方面的价值及新进展进行初步的总结、介绍。CT spectral imaging is a new imaging modality,which has not only become the focus in imaging research,but also has been widely used in the diagnosis of variable diseases. At the same time,the efforts of reducing radiation dose in CT imaging has widely been made. In this paper,we try to make a preliminary summary and introduction to the composition of CT energy spectrum imaging equipment,imaging principles,imaging characteristics,the reduction of the radiation dose and its new progress.

关 键 词：体层摄影术 X线计算机 能谱成像 成像原理 辐射剂量 迭代技术 

分 类 号：R811[医药卫生—放射医学] R814.42[医药卫生—临床医学]