公开(公告)号：US10359493B2

公开(公告)日：2019-07-23

申请号：US15395167

申请日：2016-12-30

Applicant: General Electric Company

Inventor： Ersin Bayram ,  Naoyuki Takei ,  Yuji Iwadate ,  Kang Wang ,  Lloyd Estkowski

IPC: G01V3/00 ,  G01R33/567 ,  G01R33/48 ,  G01R33/56 ,  G01R33/561

Abstract: An MRI system for performing time resolved MR imaging of an object with grouped data acquisition is provided. The MRI system includes an MRI controller in electronic communication with a magnet assembly and operative to sample a group of data points within a first region of a k-space. The first region includes a central sub-region and a first peripheral sub-region. The MRI controller is further operative to sample a group of data points within a second region of the k-space. The second region includes the central sub-region and a second peripheral sub-region different from the first peripheral sub-region.

公开(公告)号：US20160187447A1

公开(公告)日：2016-06-30

申请号：US14584501

申请日：2014-12-29

Applicant: GENERAL ELECTRIC COMPANY ,  BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： KEN-PIN HWANG ,  Zachary William Slavens ,  Ersin Bayram ,  Kang Wang ,  Daniel Litwiller ,  Jingfei Ma

IPC: G01R33/561 ,  G01R33/48

CPC classification number: G01R33/4828 ,  G01R33/5616

Abstract: A method that includes obtaining an MRI gradient echo train of at least three echo data sets at differing phase angles; producing a plurality of phase error maps among the at least three echo data sets; and imaging at least three distinct chemical species based on the plurality of phase error maps.

Abstract translation: 一种方法，其包括以不同的相位角度获得至少三个回波数据集的MRI梯度回波串; 在所述至少三个回波数据集之间产生多个相位误差图; 以及基于所述多个相位误差图来成像至少三种不同的化学物质。

公开(公告)号：US09880244B2

公开(公告)日：2018-01-30

申请号：US14584501

申请日：2014-12-29

Applicant: GENERAL ELECTRIC COMPANY ,  BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： Ken-Pin Hwang ,  Zachary William Slavens ,  Ersin Bayram ,  Kang Wang ,  Daniel Litwiller ,  Jingfei Ma

IPC: G01R33/48 ,  G01R33/561

CPC classification number: G01R33/4828 ,  G01R33/5616

Abstract: A method that includes obtaining an MRI gradient echo train of at least three echo data sets at differing phase angles; producing a plurality of phase error maps among the at least three echo data sets; and imaging at least three distinct chemical species based on the plurality of phase error maps.

公开(公告)号：US09274197B2

公开(公告)日：2016-03-01

申请号：US13691327

申请日：2012-11-30

Applicant: General Electric Company

Inventor： Kang Wang ,  Peng Lai ,  James Hartman Holmes ,  Frank R. Korosec

IPC: G01V3/00 ,  G01R33/561 ,  G01R33/48

CPC classification number: G01R33/561 ,  G01R33/4824

Abstract: A magnetic resonance imaging data sampling method includes randomly undersampling a first half of a k-space plane such that a plurality of points in the first half are sampled points and the remaining plurality of points in the first half are unsampled points. The method also includes determining, for each sampled point in the first half, a corresponding point in a second half of the k-space plane that corresponds to the point-wise complex conjugate location of the sampled point.

Abstract translation: 磁共振成像数据采样方法包括：随机地对k空间平面的前半部分进行欠采样，使得前半部分中的多个点为采样点，而前半部分中的其余多个点为非采样点。 该方法还包括对于前半部分的每个采样点确定对应于采样点的逐点复共轭位置的k空间平面的后半部分中的相应点。

公开(公告)号：US20140152303A1

公开(公告)日：2014-06-05

申请号：US13691327

申请日：2012-11-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Kang Wang ,  Peng Lai ,  James Hartman Holmes ,  Frank R. Korosec

IPC: G01R33/48

CPC classification number: G01R33/561 ,  G01R33/4824

Abstract: A magnetic resonance imaging data sampling method includes randomly undersampling a first half of a k-space plane such that a plurality of points in the first half are sampled points and the remaining plurality of points in the first half are unsampled points. The method also includes determining, for each sampled point in the first half, a corresponding point in a second half of the k-space plane that corresponds to the point-wise complex conjugate location of the sampled point.

Abstract translation: 磁共振成像数据采样方法包括：随机地对k空间平面的前半部分进行欠采样，使得前半部分中的多个点为采样点，而前半部分中的其余多个点为非采样点。 该方法还包括对于前半部分的每个采样点确定对应于采样点的逐点复共轭位置的k空间平面的后半部分中的相应点。