波谱学杂志 ›› 1996, Vol. 13 ›› Issue (5): 491-501.

• 研究论文 • 上一篇    下一篇

一种通用的MRI计算机模拟软件

陈思中, 戚海峰, 谢海滨, 李鲠颖, 邬学文   

  1. 华东师范大学分析测试中心, 上海 200062
  • 收稿日期:1996-03-18 修回日期:1996-05-06 出版日期:1996-10-05 发布日期:2018-01-17
  • 基金资助:
    国家自然科学基金和国家教委博士点基金资助项目

A UNIVERSAL MRI COMPUTER SIMULATION SOFTWARE

Chen Sizhong, Qi Haifeng, Xie Haibin, Li Gengying, Wu Xuewen   

  1. The Analytical Center of East China Normal University, Shanghai 200062
  • Received:1996-03-18 Revised:1996-05-06 Online:1996-10-05 Published:2018-01-17

摘要: 报道一套基于解释脉冲程序的MRI的计算机模拟软件,可适用于任意脉冲序列成象方法的计算机模拟,该软件包括成象物理模型的建立,成象物理过程的模拟,基于K空间的时域FID信号的重组,多维傅立叶交换重建图象,多维滤波反投影重建图象.图象显示等功能模块;分析了成象的物理过程的基本原理和软件的设计思想.并以GE成象和SEPI快速成象方法为例进行了模拟,实现了图象重建.

关键词: MRI, 计算机模拟, 脉冲程序, 图象重建

Abstract: Based on the interpretation of the pulse sequence program, we have built a computer simulation software. The software is suitable for any pulse sequence in MRI, It consistS of severval parts f the physical model of MRI sample, the simulation of the MRI process, rearrangement of the FID signals, and fourier transformations or imageback projection reconstruction. We describe shortly the behaviour of spin system in MRI process and the idea of the software designing. We selected two famous MRI methods:GE and SEPI as examples to introduce the use of this simulation software.

Key words: MRI computer simulation, Pulse sequence program, Image reconstruction