公开(公告)号：US08934694B2

公开(公告)日：2015-01-13

申请号：US13824704

申请日：2011-10-03

申请人： Nan-Kuei Chen ,  Alexandru V. Avram ,  Allen W. Song ,  Trong-Kha Truong

发明人： Nan-Kuei Chen ,  Alexandru V. Avram ,  Allen W. Song ,  Trong-Kha Truong

IPC分类号： G06K9/00 ,  G06T11/00 ,  G01R33/565 ,  A61B5/00 ,  A61B5/055 ,  G01R33/48 ,  G01R33/561

CPC分类号： G06T11/008 ,  A61B5/0042 ,  A61B5/055 ,  A61B5/7207 ,  G01R33/4824 ,  G01R33/5611 ,  G01R33/5616 ,  G01R33/56509 ,  G01R33/56545 ,  G01R33/56554

摘要： Methods, systems, computer programs, circuits and workstations are configured to carry out image processing to generate MRI images with reduced aliasing artifacts (e.g., Nyquist and/or motion-induced image artifacts) by (a) electronically reconstructing a series of images using patient image data obtained from a patient MRI image data set by iteratively cycling through different estimated values of phase gradients in at least two dimensions; and (b) electronically selecting an image from the reconstructed images as having a lowest artifact level.

摘要翻译： 方法，系统，计算机程序，电路和工作站被配置为通过（a）使用患者电子重建一系列图像来执行图像处理以产生具有减少的混叠伪像（例如，奈奎斯特和/或运动引起的图像伪影）​​的MRI图像 通过在至少两维中反复循环相位梯度的不同估计值从患者MRI图像数据集获得的图像数据; 和（b）从重建图像电子地选择具有最低假象水平的图像。

公开(公告)号：US20130182932A1

公开(公告)日：2013-07-18

申请号：US13824704

申请日：2011-10-03

申请人： Nan-kuei Chen ,  Alexandru V. Avram ,  Allen W. Song ,  Trong-Kha Truong

发明人： Nan-kuei Chen ,  Alexandru V. Avram ,  Allen W. Song ,  Trong-Kha Truong

IPC分类号： G06T11/00

CPC分类号： G06T11/008 ,  A61B5/0042 ,  A61B5/055 ,  A61B5/7207 ,  G01R33/4824 ,  G01R33/5611 ,  G01R33/5616 ,  G01R33/56509 ,  G01R33/56545 ,  G01R33/56554

摘要： Methods, systems, computer programs, circuits and workstations are configured to carry out image processing to generate MRI images with reduced aliasing artifacts (e.g., Nyquist and/or motion-induced image artifacts) by (a) electronically reconstructing a series of images using patient image data obtained from a patient MRI image data set by iteratively cycling through different estimated values of phase gradients in at least two dimensions; and (b) electronically selecting an image from the reconstructed images as having a lowest artifact level.

摘要翻译： 方法，系统，计算机程序，电路和工作站被配置为通过（a）使用患者电子重建一系列图像来执行图像处理以产生具有减少的混叠伪像（例如，奈奎斯特和/或运动引起的图像伪影）​​的MRI图像 通过在至少两维中反复循环相位梯度的不同估计值从患者MRI图像数据集获得的图像数据; 和（b）从重建图像电子地选择具有最低假象水平的图像。