公开(公告)号：US09664764B2

公开(公告)日：2017-05-30

申请号：US14167152

申请日：2014-01-29

Applicant: Samsung Electronics Co., Ltd. ,  The Trustees of the University of Pennsylvania

Inventor： Jin Young Hwang ,  Joon Soo Kim ,  Jae Moon Jo ,  Yang Lim Choi ,  Jongho Lee

IPC: G01R33/56 ,  G01R33/565 ,  G01R33/561

CPC classification number: G01R33/56 ,  G01R33/5602 ,  G01R33/5615 ,  G01R33/56536

Abstract: An MRI system acquires a susceptibility-weighted image by acquiring a first RF echo signal in a first echo time for providing an image exclusive of susceptibility-weighting and acquiring a second RF echo signal in a second echo time longer than the first echo time for providing an image including susceptibility-weighting. A compensation gradient field is applied for compensating for field inhomogeneity and in response, a third RF echo signal is acquired in a third echo time longer than the second echo time. First, second and third images are generated in response to data derived from the first, second and third RF echo signals respectively and data of the first, second and third images is combined to provide image data representing an image compensating for magnetic resonance signal attenuation in the second image.

公开(公告)号：USD808926S1

公开(公告)日：2018-01-30

申请号：US29545533

申请日：2015-11-13

Applicant: Samsung Electronics Co., Ltd.

Designer： Ji Gwang Kim ,  Joon Soo Kim ,  YuLi Sung ,  Young Soo Hong

公开(公告)号：USD786262S1

公开(公告)日：2017-05-09

申请号：US29548894

申请日：2015-12-17

Applicant: Samsung Electronics Co., Ltd.

Designer： Ji-Gwang Kim ,  Yuli Sung ,  Joon Soo Kim

公开(公告)号：US10317496B2

公开(公告)日：2019-06-11

申请号：US14501195

申请日：2014-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Cheon Choi ,  Joon Soo Kim ,  Yeol Min Seong ,  Yang Lim Choi ,  Praveen Gulaka

IPC: G01R33/561

Abstract: An MRI apparatus includes: a receive coil assembly including channels, and configured to receive an MR signal from an object; a data generator configured to generate undersampled image data on a k-space based on the MR signal; and a reconstructed image generator configured to generate a first reconstructed image from the undersampled image data using a parallel imaging method, and a second reconstructed image from the undersampled image data using compressed sensing. According to the MRI apparatus, since image reconstruction is performed using random undersampled image data, a parallel imaging method, and compressed sensing, it is possible to increase a speed of image acquisition and, at the same time, to improve the quality of images.

公开(公告)号：USD760693S1

公开(公告)日：2016-07-05

申请号：US29519289

申请日：2015-03-04

Applicant: Samsung Electronics Co., Ltd.

Designer： Ji Gwang Kim ,  Yu Li Sung ,  Joon Soo Kim ,  Young Soo Hong

公开(公告)号：US09720066B2

公开(公告)日：2017-08-01

申请号：US14172136

申请日：2014-02-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Ho Lee ,  Seung Je Choi ,  Joon Soo Kim

IPC: G01V3/00 ,  G01R33/565

CPC classification number: G01R33/56518

Abstract: A magnetic resonance imaging apparatus includes a magnetic assembly including a main magnet and a gradient coil unit and forming a static magnetic field and a gradient magnetic field in the bore thereof, and a gradient controller applying a test gradient waveform to the magnetic assembly, and compensating for a distortion of the magnetic field gradients, caused by eddy currents, by reflecting the actual shape of the applied test gradient waveform.

公开(公告)号：USD760694S1

公开(公告)日：2016-07-05

申请号：US29519295

申请日：2015-03-04

Applicant: Samsung Electronics Co., Ltd.

Designer： Ji Gwang Kim ,  Yu Li Sung ,  Joon Soo Kim ,  Young Soo Hong