摘要
PET／MR是目前最先进的分子影像设备，PET图像需要通过衰减校正来得到真实的放射性药物活度分布并对其进行量化。笔者主要对PET／MR的衰减校正原理和衰减校正的方法进行综述，重点介绍地图集法、组织分割法和具有发展前景的发射数据重建法。
PET/MR is the most advanced molecular imaging device nowadays. The PET image needs to be quantified by attenuation correction（AC） to obtain the real activity distribution of radioactive drugs. The principle of AC of PET/MR and four methods of AC are briefly described in this paper .This paper mainly introduces the tissue segmentation and atlas method. A more promising launch data reconstruction method is also introduced in this paper.
作者
陈兴
赵军
Chen Xing;Zhao Jun(Department of Nuclear Medicine,Shanghai East Hospital,Tonal University,Shanghai 200123,China)
出处
《国际放射医学核医学杂志》
2018年第4期352-356,共5页
International Journal of Radiation Medicine and Nuclear Medicine
