Propeller成像方式的MRI图像重建算法研究

摘要

Propeller technique is a new method of data collection for reducing motion artifact.It is an important imaging style to be developed in the MR scanner in our country.The image reconstruction methods are studied for Non-uniform acquisition MRI.Reading MRD file,showing raw data and propeller trajectories and gridding reconstruction process are analyzed in the paper,which provides an important reference for the realization of Propeller MRI in the engineering.%Propeller成像是一种可以自动减少运动伪影的MRI数据采集方式,是目前国内开发磁共振扫描仪力求具备的一项关键技术。对非均匀间隔采集的图像重建方法进行了研究,对Propeller采集的MRD数据文件的读取,k-空间原始数据及轨迹的显示,以及Propeller图像重建过程进行了分析,为Propeller图像重建算法的工程实现提供了参考。