公开(公告)号：US20170131377A1

公开(公告)日：2017-05-11

申请号：US15347906

申请日：2016-11-10

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Young-beom KIM ,  Hyun-wook PARK ,  Dong-chan KIM ,  Hyun-seok SEO ,  Ki-nam KWON ,  Jae-jin CHO

IPC: G01R33/563 ,  G01R33/28 ,  A61B5/00 ,  A61B5/055 ,  A61B5/0402 ,  G01R33/567 ,  G01R33/561

CPC classification number: G01R33/56316 ,  A61B5/0044 ,  A61B5/0263 ,  A61B5/0402 ,  A61B5/0456 ,  A61B5/055 ,  G01R33/56 ,  G01R33/5607 ,  G01R33/5611 ,  G01R33/5635 ,  G01R33/5673

Abstract: An MRI apparatus includes a controller configured to acquire, based on a gradient echo sequence, an MR signal from an object; and an image processor configured to acquire a first image corresponding to a time point when the MR signal has a largest phase variation, acquire a second image corresponding to a time point when the MR signal has a smallest phase variation, and obtain an arterial image including an artery of the object by using the first image and the second image.

公开(公告)号：US20180067183A1

公开(公告)日：2018-03-08

申请号：US15681018

申请日：2017-08-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joon-sung CHOI ,  Young-beom KIM

IPC: G01R33/561 ,  G01R33/48

CPC classification number: G01R33/5615 ,  G01R33/4818 ,  G01R33/561 ,  G01R33/5618 ,  G01R33/56518 ,  G01R33/56554

Abstract: A magnetic resonance imaging (MRI) apparatus for obtaining a magnetic resonance (MR) image using a multi-echo pulse sequence including a plurality of repetition times, including a memory configured to store an MR signal obtained using the multi-echo pulse sequence, and an image processor configured to determine a plurality of echo times included in the plurality of repetition times to provide the multi-echo pulse sequence including the plurality of echo times during the plurality of repetition times, and to obtain the MR image, based on the MR signal, wherein the plurality of repetition times includes a first repetition time adjacent to a second repetition time, wherein the plurality of echo times includes a first echo time of the first repetition time, a second echo time of the first repetition time, a first echo time of the second repetition time, and a second echo time of the second repetition time.

公开(公告)号：US20140221814A1

公开(公告)日：2014-08-07

申请号：US14071831

申请日：2013-11-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeun-chul RYU ,  Tae-yong SONG ,  Young-beom KIM ,  Jae-mock YI ,  Seong-deok LEE

IPC: G01R33/48

CPC classification number: G01R33/481 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5247 ,  G01R33/4808

Abstract: Provided is a magnetic resonance imaging and positron emission tomography (MRI-PET) system. The MRI-PET system includes a PET unit and a radiofrequency (RF) coil disposed within a gradient coil assembly.

Abstract translation: 提供了磁共振成像和正电子发射断层摄影（MRI-PET）系统。 MRI-PET系统包括设置在梯度线圈组件内的PET单元和射频（RF）线圈。

公开(公告)号：US20140232392A1

公开(公告)日：2014-08-21

申请号：US13972038

申请日：2013-08-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeun-chul RYU ,  Young-beom KIM ,  Seong-deok LEE ,  Jae-mock YI

IPC: G01R33/58

CPC classification number: G01R33/583 ,  G01R33/3875 ,  G01R33/5659

Abstract: A method of shimming a magnetic field, includes applying radio frequency (RF) signals to an object, using a transceiver coil, and calibrating phase offsets of magnetic resonance signals acquired from the object through a receiver coil. The method further includes generating RF signals to be applied through the transceiver coil based on magnetic resonance signals acquired from the object through the transceiver coil and the calibrated magnetic resonance signals.

Abstract translation: 一种对磁场进行匀场的方法包括使用收发器线圈向物体施加射频（RF）信号，以及通过接收器线圈校准从对象获取的磁共振信号的相位偏移。 该方法还包括基于通过收发器线圈从物体获取的磁共振信号和经校准的磁共振信号来产生将通过收发器线圈施加的RF信号。

公开(公告)号：US20140210465A1

公开(公告)日：2014-07-31

申请号：US14064374

申请日：2013-10-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-beom KIM ,  Yeun-chul RYU ,  Jae-mock YI

IPC: G01R33/54 ,  G01R33/34

CPC classification number: G01R33/3635 ,  G01R33/3415

Abstract: Provided are apparatuses and methods for magnetic resonance imaging (MRI). The magnetic resonance imaging (MRI) method includes applying radio frequency (RF) pulses to an object in a magnetic field, the RF pulses having different frequency bands for each of at least two types of nucleus in the object; applying predetermined pulse sequences for each type of nucleus to the object; receiving magnetic resonance signals emitted by each nucleus in response to the RF pulses and the predetermined pulse sequences; and generating an image of the object based on the received magnetic resonance signals.

Abstract translation: 提供了用于磁共振成像（MRI）的装置和方法。 磁共振成像（MRI）方法包括在磁场中对物体施加射频（RF）脉冲，对于物体中的至少两种核的每一个，RF脉冲具有不同的频带; 将每种类型的核应用预定的脉冲序列给对象; 接收响应于所述RF脉冲和所述预定脉冲序列的每个核发射的磁共振信号; 以及基于所接收的磁共振信号产生所述对象的图像。