公开(公告)号：US20150346305A1

公开(公告)日：2015-12-03

申请号：US14288772

申请日：2014-05-28

申请人： General Electric Company

发明人： Kevin F. King

IPC分类号： G01R33/561 ,  G01R33/385 ,  G01R33/341 ,  G01R33/3815 ,  G01R33/48 ,  G01R33/54

CPC分类号： G01R33/5611 ,  G01R33/385 ,  G01R33/4818

摘要： A method for generating a magnetic resonance (MR) image includes applying a pulse sequence including a quadratic field gradient. A first k-space data set is acquired from each of a plurality of RF coils where each first k-space data set including uniformly undersampled data. A randomly undersampled k-space data set is generated for each RF coil from the first k-space data set. A compressed sensing reconstruction technique is applied to the randomly undersampled k-space data set of each RF coil to generate a second k-space data set for each RF coil where each second k-space data set including uniformly undersampled data. A phase scrambling reconstruction technique is applied to the second k-space data set of each RF coil to generate a low resolution coil image for each RF coil. A MR image is generated by applying a parallel imaging technique to the low resolution coil image and second k-space data set for each RF coil.

摘要翻译： 用于产生磁共振（MR）图像的方法包括应用包括二次场梯度的脉冲序列。 从多个RF线圈中的每一个获取第一k空间数据集，其中每个第一k空间数据集包括均匀的欠采样数据。 对于来自第一k空间数据集的每个RF线圈生成随机欠采样的k空间数据集。 将压缩感测重构技术应用于每个RF线圈的随机欠采样k空间数据集，以为每个RF线圈生成第二k空间数据集，其中每个第二k空间数据集包括均匀的欠采样数据。 将相位加扰重构技术应用于每个RF线圈的第二k空间数据集，以产生每个RF线圈的低分辨率线圈图像。 通过将并行成像技术应用于针对每个RF线圈的低分辨率线圈图像和第二k空间数据集来生成MR图像。