摘要
磁共振扩散加权成像是反映水分子扩散特性、检测组织微观结构变化的功能成像技术,包括单指数扩散加权成像(diffusion weighted imaging,DWI)、体素内不相干运动(intravoxel incoherent motion,IVIM)模型、扩散张量成像(diffusion tensor imaging,DTI)和扩散峰度成像(diffusion kurtosis imaging,DKI),目前已用于软组织肿瘤临床评估。本文就上述四种技术类型做简要介绍,并就其在软组织肿瘤的良恶性鉴别诊断、组织学分级预测、浸润评估、术后复发监测以及放化疗疗效评价或预测中的应用进展进行综述。
Magnetic resonance(MR)diffusion weighted imaging is a functional imaging technique that can reflect the diffusion characteristics of water molecules and detect microstructural changes in tissues,including monoexponential diffusion weighted imaging(DWI),intravoxel incoherent motion(IVIM)model,diffusion tensor imaging(DTI)and diffusion kurtosis imaging(DKI),and has been used in the clinical evaluation of soft tissue tumors(STTs).This article introduces the four techniques briefly and reviews their application in the differential diagnosis,histological grading prediction,infiltration assessment,postoperative recurrence monitoring and radiotherapy efficacy evaluation or prediction of STSs.
作者
阳艳语
张凯
张丽娜
王绍武
YANG Yanyu;ZHANG Kai;ZHANG Lina;WANG Shaowu(Department of Radiology,The Second Hospital of Dalian Medical University,Dalian 116027,China;Department of Radiology,The First Affiliated Hospital of Dalian Medical University,Dalian 116011,China)
出处
《磁共振成像》
CAS
CSCD
北大核心
2021年第10期121-124,共4页
Chinese Journal of Magnetic Resonance Imaging
基金
国家自然科学基金面上项目(编号:81771804)。
关键词
软组织肿瘤
扩散加权成像
体素内不相干运动
扩散张量成像
扩散峰度成像
soft tissue tumors
diffusion weighted imaging
intravoxel incoherent motion
diffusion tensor imaging
diffusion kurtosis imaging
