中文摘要：

对弥散磁共振成像的核心内容——使用不同强度和方向的弥散信息对完整弥散过程进行三维建模进行介绍.首先根据模型可描述纤维数量将其分为低角度分辨率和高角度分辨率弥散磁共振成像2类,然后根据建模所用弥散采样选择方式将高角度分辨率弥散磁共振成像分为多弥散角度方向模型、多弥散强度模型和综合弥散角度方向和强度模型3类并进行介绍,并对每个具体模型分别从模型设计、模型计算和模型优缺点3个角度进行分析.

英文摘要：

This paper reviews the 3D modeling methods of the diffusion procedure for diffusion magnetic resonance imaging using different radial and angular information. The modeling methods are first divided into two categories： low angular resolution and high angular resolution. And then we describe the high angular resolution model, accord- ing to the sampling schematics, with multi-angular model, multi-radial model and synthetic model. Meanwhile, the model designation, computation algorithm, merits and drawbacks are also discussed as well.