压缩感知磁共振成像实验教学软件的设计与实现  

Design and Implementation of CS-MRI Educational Software

作　　者：刘且根[1] 卢红阳[1] 徐晓玲[1] 张明辉[1] 

机构地区：[1]南昌大学信息工程学院生物医学工程教研室,江西南昌330031

出　　处：《实验室研究与探索》2016年第6期157-162,共6页Research and Exploration In Laboratory

基　　金：国家自然科学基金(61362001;61365013;51165033);江西省省级教改课题(JXJG-13-1-8);江西省省基金(20151BAB207007;20151BAB207008);江西省博士后科学基金资助(2014KY02)

摘　　要：压缩感知在磁共振成像上的发展是目前最为成功和经典的应用之一,被称为压缩感知磁共振成像(CS-MRI)。CS-MRI涉及到高深的数学理论和复杂的K空间数据采样方法,非常抽象。本设计在融合CS-MRI研究成果的基础上基于Matlab GUI设计和实现了一套交互式可视化的CS-MRI实验教学软件。用户可以在该软件界面上模拟实现不同采样轨迹和不同欠采样因子下K空间数据稀疏采集的图像重构并观察其重构效果。通过交互式、可视化的学习环境,有助于更好地理解CSMRI的基本理论和方法。该实验教学软件已在南昌大学生物医学工程专业本科生和研究生教学中使用,取得良好的教学效果。Compressed sensing is currently one of the most successful and classical applications in the magnetic resonance imaging development,and known as compressed sensing magnetic resonance imaging（ CS-MRI）. However,CS-MRI is very abstract since it involves advanced mathematical theories and complex K-space data sampling methods.The design integrates CS-MRI research results to design and implement a set of interactive and visual educational software with Matlab GUI. Users can simulate and achieve image reconstruction under collection of K-space data and to observe its effect on the software interface under different sampling trajectories and sub-sampling factors. It is better understanding of the basic theory and method of CS-MRI through the interactive and visual learning environment. The software was used for graduate and undergraduate students of the biomedical engineering in Nanchang University,and has received a good teaching effect.

关 键 词：教学软件 压缩感知 磁共振成像 交互式可视化 设计与实现 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]