摘要
磁共振扩散峰度成像(diffusional kurtosis imaging,DKI)是一种可量化组织内水分子扩散非高斯运动的磁共振新技术,是扩散张量成像技术的延伸,对于描绘组织微观结构具有独特优势。DKI技术在神经系统已有较多研究,并已取得较好的成果。近年来,DKI逐渐应用于其他系统疾病研究,也取得了初步成果,展现出一定的临床价值。现综述DKI的成像原理及其在全身各系统中的研究进展。
Diffusion kurtosis imaging(DKI)is an emerging diffusion index to quantify non-Gaussian diffusional process in vivo and an extension of the technology of diffusion tensor imaging,particularly having unique advantages for characterizing microstructure of tissues.The technology of DKI has been studied in the nervous system and has made good progresses.In recent years,DKI is gradually applied to the researches of other different systems and has also obtained preliminary results,which displayed certain clinical values.This article proposed to summary the technic principles and application advances in various systems for DKI.
作者
张家慧
郎宁
袁慧书
ZHANG Jia-hui;LANG Ning;YUAN Hui-shu(Department of Radiology,Peking University Third Hospital,Beijing 100191,China)
出处
《磁共振成像》
CAS
CSCD
2018年第4期316-320,共5页
Chinese Journal of Magnetic Resonance Imaging
基金
国家自然科学基金项目(编号:81701648
81471634)
北京市自然科学基金项目(编号:7164309)~~
关键词
磁共振成像
扩散峰度成像
扩散张量成像
扩散加权成像
Magnetic resonance imaging
Diffusional kurtosis imaging
Diffusional tensor imaging
Diffusion weighted imaging
