磁共振弥散张量成像和纤维束密度成像在中枢神经系统的研究进展

Research Development of MR Diffusion Tensor Imaging and Track Density Imaging in Central Nervous System

摘要: 磁共振弥散张量成像（DTI）在中枢神经系统病变的诊断中有着越来越广泛的应用，磁共振纤维束密度成像（TDI）是一种新兴的基于DTI的成像技术，目前在临床应用上处于起步阶段。该文对两种技术的原理和临床应用进行了介绍，分析了各自的优缺点，并作了总结和展望。

Abstract: Diffusion tensor imaging (DTI) is being used more and more widely in the diagnosis of central nervous system. Based on DTI, track density imaging (TDI) is an emerging technique applied to clinical use. This article introduced the principle and clinical application, analyzed pros and cons, and made conclusion and prospect of these two techniques.