一种新的磁共振图像处理流水线的设计与实现

Design and Implementation of a Novel Processing Pipeline for Magnetic Resonance Images

磁共振图像的重建、后处理及可视化是磁共振成像(MRI)系统的重要组成部分.本文开发了一个新的用于磁共振图像重建、后处理及可视化的开源框架YAP(Yet Another Pipeline),利用此框架可以方便地构建图像处理流水线.与现有的一些其他开源框架相比,本文开发的框架具有如下特点:(1)采用基于接口的设计,可使用基于接口的插件对流水线的功能进行扩展;(2)允许用户使用编写脚本的方式构建图像处理流水线,编辑与修改流水线都很方便;(3)支持带有分支结构的流水线,便于流水线的构建与调试.目前,该框架已经在商用系统中获得了应用.

Reconstruction, post-processing and visualization of images are important parts of magnetic resonance imaging （MRI）. In this work, a new open source framework, namely Yet Another Pipeline （YAP）, was proposed for reconstruction, post-processing and visualization of MR images. With YAP, researchers can build customized image-processing pipelines with ease. Compared with the existing open source frameworks, YAP has the following features： （1） it has an interface-based design, enabling function extension by plugin development; （2） it uses a script language with straightforward grammar, making it easy to build and modify customized pipelines; （3） it supports branches in the pipelines, facilitating pipeline building and debugging. YAP has been implemented on a commercial MRI system.