PET—MRI的临床研究进展  

Clinical research of PET-MRI

作　　者：王新艳[1] 管一晖[1] 

机构地区：[1]复旦大学附属华山医院PET中心,上海200235

出　　处：《国际放射医学核医学杂志》2011年第3期138-145,共8页International Journal of Radiation Medicine and Nuclear Medicine

摘　　要：多模式显像技术PET—CT和SPECT—CT已经成为临床实践和基础生物医学研究常用的检查方法，并且技术日益成熟？但PET—CT作为有效的临床基本检查工具，仍然受到许多限制，为克服这些困难，目前研究的热点集中在PET和MRI融合技术上。PET—MRI是综合了多参数功能成像和高分辨率的显像技术，尤其适用于对软组织要求较高、受照射剂量限制的小动物成像实验研究和人体临床研究，初步的研究结果显尔，PET—MRI技术可在多方面优于PET—CT，PET和MRI存临床应用的互补作用将会使分子影像学进一步发展。Multimodality imaging with PET-CTand SPECT-CT has become commonplace in clinical practice and in preclinical and basic biomedical research. Although PET-CT is ah＇eady an established clinical tool it still bears some limitations. To overcome these limitations, recent research concentrates on the combination of PET and MRI into one single machine. Combined PET-MRI allows for multi-parametric imaging and reveals one or more functional processes simuhaneously along with high-resolution morphology. Especially in small-animal research, where high soft tissue contrast is required, and the scan time as well as radiation dose are critical factors, the combiuation of PET and MRI would be beneficial compared with PET-CT.

关 键 词：电子发射断层显像术 磁共振成像 体层摄影术 X线计算机 图像处理 计算机辅助 

分 类 号：R445.2[医药卫生—影像医学与核医学]