公开(公告)号：US20180088197A1

公开(公告)日：2018-03-29

申请号：US15692338

申请日：2017-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun-sang SUH

IPC: G01R33/56 ,  G01R33/567 ,  G01R33/48

CPC classification number: G01R33/5602 ,  G01R33/4818 ,  G01R33/54 ,  G01R33/5608 ,  G01R33/5615 ,  G01R33/5617 ,  G01R33/5673

Abstract: An magnetic resonance imaging (MRI) apparatus and a method of obtaining a magnetic resonance (MR) image are provided. The MRI apparatus includes a processor that obtains k-space data including information on a high frequency region and a low frequency region, and corresponding to a first echo time within a single repetition time (TR), obtains second k-space data including information on at least a part of the low frequency region and corresponding to a second echo time within the single TR, and generating a plurality of reconstructed images having different contrasts based on the first k-space data and the second k-space data.

公开(公告)号：US20210173030A1

公开(公告)日：2021-06-10

申请号：US16770287

申请日：2018-08-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joon-sung CHOI ,  Hyun-sang SUH ,  Hyun-seok SEO ,  Myung-sung SONG ,  Dae-ho LEE

IPC: G01R33/48 ,  G06T11/00 ,  G01R33/561 ,  A61B5/055 ,  A61B5/00

Abstract: Provided are a method of obtaining a water-fat separation image and a magnetic resonance imaging (MRI) apparatus including a controller configured to obtain first partial k-space data, second partial k-space data, and third partial k-space data, respectively based on a first partial echo signal, a second partial echo signal, and a third partial echo signal, which are magnetic resonance signals corresponding to a plurality of echo times with respect to an object, obtain first reconstruction image data, second reconstruction image data, and third reconstruction image data with respect to the object, respectively based on the first partial k-space data, the second partial k-space data, and the third partial k-space data, and obtain first water image data, first fat image data, and first phase image data of the object, respectively based on the first reconstruction image data, the second reconstruction image data, and the third reconstruction image data, by using a Dixon technique.

公开(公告)号：US20180217216A1

公开(公告)日：2018-08-02

申请号：US15886414

申请日：2018-02-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun-sang SUH ,  Joon-sung CHOI

IPC: G01R33/56 ,  G01R33/48 ,  G01R33/54

CPC classification number: G01R33/5601 ,  A61B5/4869 ,  G01R33/4828 ,  G01R33/543

Abstract: A method and apparatus for acquiring a magnetic resonance (MR) signal are provided. The method includes: applying one radio frequency (RF) excitation pulse to a region of interest that has undergone a frequency shift by injecting a contrast agent into an object; acquiring a plurality of echo signals at a plurality of different echo times based on phase differences among water, fat, and the region of interest; and separating, based on the acquired plurality of echo signals, MR signals respectively originating from the water, the fat, and the region of interest.